Automatic treatment device and method for wastewater from p-chlorophenyl isocyanate processing

Abstract

The invention discloses an automated wastewater treatment device and method for processing p-chlorophenyl isocyanate, relating to the technical field of wastewater treatment. The device comprises a treatment tank, wherein two water inlet pipes are provided on the top of the treatment tank, and the device further comprises: a rotating rod, which penetrates the top of the treatment tank and is rotatably connected to the treatment tank; a turntable is rotatably connected to the outer side of the rotating rod; a plurality of mixing cylinders are fixedly connected to the top of the turntable; a first ring plate is fixedly connected between the tops of the plurality of mixing cylinders, and the tops of the mixing cylinders are connected to the water inlet pipe; sewage is injected into the interior of the mixing cylinder through the water inlet pipe and enters the interior of a mixing capsule through a lifting plate, so that the sewage is fully in contact with powder; the powder adheres to the inner wall of the mixing capsule, thereby ensuring the contact effect between the sewage and the powder; the periodic expansion and contraction of the mixing capsule generates shear force, destroys the solid-liquid boundary layer between the wastewater and the powder, and improves the contact efficiency compared with the traditional stirring method.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to an automatic treatment device and method for wastewater from the processing of p-chlorophenyl isocyanate. Background Art

[0002] Chlorophenyl isocyanate is an organic compound. It is a colorless liquid with a pungent, irritating odor at room temperature. Chlorophenyl isocyanate is primarily used as an important intermediate in organic synthesis. It can also be used as a chemical in the coating, adhesive, and plastic manufacturing industries. During its production, it generates a large amount of wastewater.

[0003] Patent application CN108164022B discloses a sewage treatment device comprising a frame and a cleaning bucket, the cleaning bucket being provided with a water inlet pipe and a water outlet pipe, a filter plate being provided within the cleaning bucket, a retractable oil filter plate being provided within the cleaning bucket, two symmetrical notches being provided on the sidewall of the cleaning bucket for removing the oil filter plate, a water wheel being rotatably connected within the water outlet pipe, a cam and a ratchet being coaxially connected to the water wheel, a piston cylinder being fixed to the frame, a one-way air inlet valve being provided on the piston cylinder, a limit plate being fixed to the frame, an air bag being placed on the limit plate, an air inlet port and an air valve being provided on the air bag, the piston cylinder being connected to the air inlet port of the air bag, a replacement plate being slidably connected to the frame, the replacement plate being abutted against one end of the oil filter plate, and a pawl being provided on the replacement plate for engaging with the ratchet. The present invention enables multi-stage sewage treatment without causing mud and sand to clog the water inlet pipe during the treatment process, and is therefore widely used for sewage treatment.

[0004] The above treatment is performed by setting up an inclined filter screen for filtering, but during the filtering process, a large amount of filtered matter will still be on the top of the filter screen. The existing cleaning method often uses a scraping brush, and a large amount of filtered matter will be stuck in the gap and cannot be effectively cleaned. In addition, a large amount of catalytic powder is added to the wastewater during the treatment process. During the addition process, the powder is only sprayed on the surface of the water and cannot repeatedly contact the wastewater.

[0005] Therefore, it is necessary to provide an automated wastewater treatment device and method for processing parachlorophenyl isocyanate to solve the above technical problems. Summary of the Invention

[0006] The object of the present invention is to provide an automated wastewater treatment device and method for processing p-chlorophenyl isocyanate, so as to solve the problems of the defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solution: an automated wastewater treatment device for the processing of para-chlorophenyl isocyanate, comprising a treatment tank, the top of which is provided with two water inlet pipes, and further comprising:

[0008] A rotating rod, which passes through the top of the treatment tank and is rotatably connected to the treatment tank. A turntable is rotatably connected to the outside of the rotating rod. A plurality of mixing cylinders are fixedly connected to the top of the turntable. A first ring plate is fixedly connected between the tops of the plurality of mixing cylinders, and the tops of the mixing cylinders are connected to the water inlet pipe. A connecting frame for discharging catalytic powder is provided at the bottom of the turntable. A lifting disk is provided inside the plurality of mixing cylinders. The bottom of the mixing cylinder is fixedly connected to the fixed disk. An expandable mixing capsule is fixedly connected between the lifting disk and the fixed disk.

[0009] A fixing frame, the fixing frame is fixedly connected to the inner wall of the treatment tank, and two connecting pipes are fixedly connected inside the fixing frame, and the two connecting pipes are respectively connected to the mixing barrel;

[0010] The filtering mechanism includes a switching plate, which is fixedly connected to the outside of the rotating rod, and a plurality of fixed cylinders for filtering are fixedly connected at the bottom of the switching plate. The bottoms of the plurality of fixed cylinders are slidably connected to a mounting plate, and the mounting plate is fixedly connected to the inner wall of the processing tank. Two drain pipes and two discharge pipes are fixedly connected to the bottom of the mounting plate, and a cleaning assembly is provided inside the fixed cylinder.

[0011] As a further solution of the present invention: a rotating disk is rotatably connected to the inside of the fixed disk, a connecting disk is rotatably connected to the inside of the rotating disk, a water outlet short pipe is fixedly connected to the bottom of the connecting disk, the water outlet short pipe is connected to the mixing capsule, a rotating cover is rotatably connected to the top of the connecting frame, the connecting frame is fixedly connected to the inner wall of the processing tank, the connecting frame is connected to the external blowing device through a branch pipe, a powder inlet pipe is fixedly connected to the middle of the connecting disk, the powder inlet pipe is fixedly connected to the rotating cover, and the powder is blown into the mixing capsule through the powder inlet pipe by the blowing device.

[0012] As a further solution of the present invention: a clockwork spring is provided inside the rotating disk, two ends of the clockwork spring are fixedly connected to the rotating disk and the connecting disk respectively, and a plurality of conical springs are fixedly connected to the top of the rotating disk.

[0013] As a further solution of the present invention: the top of the lifting plate is rotatably connected to a covering plate, and the tops of the lifting plate and the covering plate are both provided with staggered circulation grooves. The inner side of the mixing barrel is provided with a guide groove, and the outer side of the covering plate is fixedly connected to a sliding shaft, which extends to the inside of the guide groove provided on the inner side of the mixing barrel. When the sliding shaft is at the top of the guide groove, the covering plate coincides with the circulation groove provided on the top of the lifting plate, and a metal ring is fixedly connected to the outer side of the lifting plate.

[0014] As a further solution of the present invention: a first electromagnet ring is sleeved on the outer side of multiple mixing cylinders, and the first electromagnet ring and the metal ring are magnetically attracted, a limit rod and a first reciprocating screw are arranged on the outer side of the mixing cylinder, the limit rod and the first reciprocating screw both pass through the first electromagnet ring, the limit rod is rotatably connected to the first electromagnet ring, the first reciprocating screw is connected to the first electromagnet ring through a ball nut pair, and the first reciprocating screw and the limit rod are rotatably connected to the top of the turntable, the top of the first reciprocating screw is fixedly connected to the first gear, the inner wall of the mixing cylinder is fixedly connected to the first inner gear ring, the first inner gear ring is meshed with the first gear, the bottom of the first electromagnet ring is fixedly connected to a traction wire, the traction wire passes through the fixed disk and is wrapped around the rotating disk and fixedly connected to the outside of the rotating disk, when the first electromagnet ring rises, the rotating disk is pulled by the traction wire to rotate.

[0015] As a further solution of the present invention: a connecting ring is provided on the inner side of the fixed cylinder, a filter disc is provided inside the connecting ring, and two rotating shafts are fixedly connected to the outer side of the filter disc, the two rotating shafts pass through the outside of the connecting ring and extend to the inside of the connecting ring and are rotatably connected to the connecting ring, and a torsion spring is sleeved on the outer side of the rotating shaft, and the two ends of the torsion spring are fixedly connected to the connecting ring and the rotating shaft respectively, a plurality of second telescopic rods and a second spring are fixedly connected between the connecting ring and the bottom end of the fixed cylinder, and the second spring sleeve is provided on the outside of the second telescopic rod, the top of the filter disc is fixedly connected to the first magnetic ring, the bottom of the filter disc is fixedly connected to the second magnetic ring, and the inner wall of the fixed cylinder is fixedly connected to two limit plates, the limit plates are provided on the top of the filter disc and fit in with the top of the filter disc.

[0016] As a further solution of the present invention: the cleaning assembly includes a guide plate, a plurality of cleaning brushes are fixedly connected to the bottom of the guide plate, two connecting plates are fixedly connected to the outside of the guide plate, a slide groove is provided on the outside of the fixed cylinder, the connecting plate passes through the slide groove and is slidably connected to the fixed cylinder, the bottom of the two connecting plates are fixedly connected to a first telescopic rod, the bottom of the first telescopic rod is fixedly connected to a contact plate, and a first spring is fixedly connected between the first telescopic rod and the connecting plate.

[0017] As a further solution of the present invention: the cleaning assembly also includes a second reciprocating screw arranged on the outside of the fixed cylinder, the second reciprocating screw passes through one of the connecting plates and is connected to the connecting plate through a ball nut pair, and the bottom of the second reciprocating screw is rotatably connected to the fixed cylinder, the top of the second reciprocating screw is fixedly connected to a second gear, the inner wall of the processing tank is fixedly connected to a second inner ring, the second inner ring is meshed with the second gear, and two second electromagnets are fixedly connected to the bottom of the mounting plate. When the second electromagnet is energized, it magnetically repels the second magnetic ring and is magnetically attracted to the first magnetic ring. The two second electromagnets are respectively arranged on the outside of the two discharge pipes.

[0018] As a further solution of the present invention, the radius of the guide plate is consistent with that of the filter plate.

[0019] Also provided is a method for automated treatment of wastewater from the processing of p-chlorophenyl isocyanate, comprising the following steps:

[0020] Step 1: The catalyst powder is injected into the mixing bag inside the fixed cylinder through the external blowing device, and the powder adheres to the inner wall of the mixing bag. Then, the sewage is injected into the mixing cylinder through the water inlet pipe and enters the mixing bag through the lifting plate, so that the sewage and the powder are fully in contact.

[0021] Step 2: The external motor drives the rotating rod to rotate, and the rotating rod drives the rotating disk to rotate. At this time, the lifting disk descends to squeeze the sewage inside the mixing bag, causing the mixing bag to expand. When it rotates to the connecting pipe, the sewage flows into the fixed cylinder;

[0022] Step 3: The sewage filters the suspended solids inside the fixed cylinder and is discharged through the discharge pipe. When the rotating rod rotates, the cleaning component inside the fixed cylinder discharges the filtered suspended solids inside the fixed cylinder into the discharge pipe.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The external blowing device injects the catalyst powder into the mixing bag through the powder inlet pipe, and utilizes the adhesion characteristics of the inner wall of the mixing bag to evenly distribute the powder on the inner surface of the bag. This design avoids the problem of uneven powder dispersion caused by the traditional spraying method and reduces catalyst waste. The sewage is then injected into the mixing barrel through the water inlet pipe and enters the mixing bag through the lifting plate, so that the sewage and powder are fully in contact. The powder adheres to the inner wall of the mixing bag, thereby ensuring the contact effect between the sewage and the powder. The periodic expansion and contraction of the mixing bag generates shear force, which destroys the solid-liquid boundary layer between the wastewater and the powder. The contact efficiency is improved compared with the traditional stirring method.

[0025] 2. When the lifting plate rises, the conical spring also expands, thereby increasing the contact with the powder and improving the contact between the powder and the sewage. The device achieves efficient contact between the catalyst and the wastewater through the dual effects of airflow-driven directional distribution of the powder and mechanical disturbance of the conical spring.

[0026] 3. The sliding shaft on the outside of the covering disk rotates under the guidance of the guide groove, overlapping the flow grooves on the covering disk and the lifting disk. At this time, part of the gas drives the powder to rise, and the mixing cylinder rotates to the bottom of the water inlet pipe. At this time, the sewage flows into the mixing cylinder. The sewage first contacts the powder in the gas, and then enters the mixing bag inside the mixing cylinder through the flow groove, and contacts the adhered powder inside the mixing bag.

[0027] 4. Under the action of the second spring, the connecting ring is pushed up. During the rising process, the filter disc is flipped and reset by the action of the torsion spring, so that the filter surface of the filter disc is automatically flipped and cleaned each time. This avoids the existing cleaning method of only scraping and flushing the filter side of the filter screen, and a large amount of filtered matter may adhere to the gaps in the filter holes. This mechanism realizes fully automatic deep cleaning of the filter disc through electromagnetically driven flipping + penetrating cleaning brush + spring priority control. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and examples.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the cross-sectional structure of the processing tank of the present invention;

[0031] Figure 3 It is a schematic diagram of the turntable structure of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the rotating rod of the present invention;

[0033] Figure 5 It is a schematic structural diagram of the fixing frame of the present invention;

[0034] Figure 6 This is a schematic diagram of the cross-sectional structure of the mixing barrel of the present invention;

[0035] Figure 7 It is a schematic diagram of the conical spring structure of the present invention;

[0036] Figure 8 This is a schematic diagram of the lifting plate structure of the present invention;

[0037] Figure 9 It is a schematic diagram of the partial structure of the fixed cylinder of the present invention;

[0038] Figure 10 This is a schematic diagram of the cross-sectional structure of the fixed cylinder of the present invention;

[0039] Figure 11 This invention Figure 10 Schematic diagram of the structure of part A;

[0040] Figure 12 1 is a schematic diagram of the connecting ring structure of the present invention;

[0041] Figure 13 This is a schematic diagram of the structure of the connecting ring and the filter disc of the present invention;

[0042] Figure 14 It is a schematic diagram of the installation disk structure of the present invention.

[0043] In the figure: 1. treatment tank; 101. water inlet pipe; 102. first ring plate; 2. turntable; 3. mixing drum; 301. lifting plate; 3011. covering plate; 3012. metal ring; 3013. sliding shaft; 3014. guide groove; 302. fixed plate; 3021. rotating plate; 3022. connecting plate; 3023. spring; 3024. water outlet short pipe; 3025. traction wire; 3026. conical spring; 303. mixing capsule; 305. first electromagnet ring; 3051. first reciprocating screw rod; 3052. first gear; 3053. limit rod; 3054. first inner gear ring; 4. connecting frame; 401. rotating cover plate; 402. powder inlet Tube; 501, fixed frame; 502, connecting pipe; 6, switching plate; 7, fixed cylinder; 701, guide plate; 702, connecting plate; 703, second reciprocating screw; 705, first telescopic rod; 706, first spring; 707, contact plate; 708, cleaning brush; 709, second gear; 710, second inner ring gear; 8, mounting plate; 801, drain pipe; 803, discharge pipe; 901, connecting ring; 902, filter plate; 9021, rotating shaft; 9022, torsion spring; 9023, first magnetic ring; 9024, second magnetic ring; 903, second telescopic rod; 904, second spring; 905, limit plate; 906, second electromagnet; 10, rotating rod. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] like Figures 1 to 14 As shown, the automated treatment device and method for wastewater from the processing of p-chlorophenyl isocyanate include the following embodiments:

[0047] Example 1: Figures 1 to 8 As shown, it includes a treatment tank 1, with two water inlet pipes 101 provided on the top of the treatment tank 1, and also includes:

[0048] A rotating rod 10 is provided, which passes through the top of the treatment tank 1 and is rotatably connected to the treatment tank 1. A turntable 2 is rotatably connected to the outside of the rotating rod 10. A plurality of mixing cylinders 3 are fixedly connected to the top of the turntable 2. A first ring plate 102 is fixedly connected between the tops of the plurality of mixing cylinders 3, and the tops of the mixing cylinders 3 are connected to the water inlet pipe 101. A connecting frame 4 for discharging catalytic powder is provided at the bottom of the turntable 2. A lifting disk 301 is provided inside the plurality of mixing cylinders 3. A fixed disk 302 is fixedly connected to the bottom of the mixing cylinder 3. An expandable mixing capsule 303 is fixedly connected between the lifting disk 301 and the fixed disk 302.

[0049] A fixing frame 501 is fixedly connected to the inner wall of the treatment tank 1, and two connecting pipes 502 are fixedly connected to the interior of the fixing frame 501, and the two connecting pipes 502 are respectively connected to the mixing barrel 3;

[0050] The filtering mechanism includes a switching plate 6, which is fixedly connected to the outside of the rotating rod 10, and a plurality of fixed cylinders 7 for filtering are fixedly connected at the bottom of the switching plate 6. The bottoms of the plurality of fixed cylinders 7 are slidably connected to a mounting plate 8, and the mounting plate 8 is fixedly connected to the inner wall of the processing tank 1. Two drain pipes 801 and two discharge pipes 803 are fixedly connected to the bottom of the mounting plate 8, and a cleaning component is provided inside the fixed cylinder 7.

[0051] In specific implementation, the wastewater generated by the processing of chlorophenyl isocyanate contains a large amount of harmful chemicals. In the treatment process, catalyst powder is often added to make the harmful substances in the wastewater settle. In the process of adding, a spraying method is often adopted. A large amount of catalyst powder can only come into contact with part of the wastewater, which requires a long time of stirring treatment. Therefore, in this solution, the catalyst powder is injected into the mixing capsule 303 inside the fixed cylinder 7 through an external blowing device, and the powder is adhered to the inner wall of the mixing capsule 303. The external blowing device injects the catalyst powder into the mixing capsule 303 through the powder inlet pipe 402. Inside the mixing drum 3, the powder is evenly distributed on the inner surface of the mixing capsule 303 by utilizing the adhesive properties of the inner wall of the mixing capsule 303. This design avoids the uneven powder dispersion problem caused by the traditional spraying method and reduces catalyst waste. Sewage is then injected into the mixing drum 3 through the water inlet pipe 101 and enters the mixing capsule 303 through the lifting plate 301, so that the sewage and powder are fully in contact. The powder adheres to the inner wall of the mixing capsule 303, thereby ensuring the contact effect between the sewage and the powder. The periodic expansion and contraction of the mixing capsule 303 generates shear force, which destroys the solid-liquid boundary layer between the wastewater and the powder. The contact efficiency is improved compared with the traditional stirring method.

[0052] Then, the external motor drives the rotating rod 10 to rotate, and the rotating rod 10 drives the turntable 2 to rotate. At this time, the lifting plate 301 descends to squeeze the sewage inside the mixing bag 303, causing the mixing bag 303 to expand. When it rotates to the connecting pipe 502, the sewage flows into the fixed cylinder 7, and the sewage filters the suspended matter inside the fixed cylinder 7 and is discharged through the discharge pipe 803. When the rotating rod 10 rotates, the cleaning component inside the fixed cylinder 7 discharges the filtered suspended matter inside the fixed cylinder 7 into the discharge pipe 803, ensuring that the filtered suspended matter can be quickly cleaned after each filtration, ensuring the efficiency of each filtration, and avoiding blockage caused by suspended matter.

[0053] In this embodiment, as 7 to Figure 8 As shown, the fixed disk 302 is rotatably connected to the inside of the fixed disk 302, and the inner side of the rotating disk 3021 is rotatably connected to the connecting disk 3022. The bottom of the connecting disk 3022 is fixedly connected to a water outlet short pipe 3024, and the water outlet short pipe 3024 is connected to the mixing capsule 303. The top of the connecting frame 4 is rotatably connected to a rotating cover plate 401, and the connecting frame 4 is fixedly connected to the inner wall of the processing tank 1. The connecting frame 4 is connected to an external blowing device through a branch pipe. The middle of the connecting disk 3022 is fixedly connected to a powder inlet pipe 402, and the powder inlet pipe 402 is fixedly connected to the rotating cover plate 401. The powder is blown into the mixing capsule 303 through the powder inlet pipe 402 by the blowing device.

[0054] A spring 3023 is provided inside the rotating disk 3021 , and both ends of the spring 3023 are fixedly connected to the rotating disk 3021 and the connecting disk 3022 respectively. A plurality of conical springs 3026 are fixedly connected to the top of the rotating disk 3021 .

[0055] In specific implementation, when the external blowing device blows the powder into the interior of the connecting frame 4, and injects it into the mixing bag 303 without sewage through the rotating cover plate 401 and the powder inlet pipe 402 on the top of the connecting frame 4, a one-way air inlet valve is provided on the outside of the powder inlet pipe 402. When the lifting plate 301 rises, the gas drives the powder to fill the interior of the mixing bag 303, thereby increasing the contact surface between the powder and the sewage.

[0056] In addition, a plurality of conical springs 3026 are fixedly connected to the top of the rotating disk 3021. The conical springs 3026 are in a conical spiral shape. When the lifting disk 301 rises, the conical springs 3026 also expand, thereby increasing the contact with the powder and improving the contact between the powder and the sewage. The device achieves efficient contact between the catalyst and the wastewater through the dual effects of airflow-driven directional distribution of the powder and mechanical disturbance of the conical springs.

[0057] Example 2: Figure 8As shown, the top of the lifting plate 301 is rotatably connected to the covering plate 3011, and the tops of the lifting plate 301 and the covering plate 3011 are provided with staggered circulation grooves. A guide groove 3014 is provided on the inner side of the mixing barrel 3, and a sliding shaft 3013 is fixedly connected to the outer side of the covering plate 3011. The sliding shaft 3013 extends to the inside of the guide groove 3014 provided on the inner side of the mixing barrel 3. When the sliding shaft 3013 is at the top of the guide groove 3014, the covering plate 3011 coincides with the circulation groove provided on the top of the lifting plate 301, and a metal ring 3012 is fixedly connected to the outer side of the lifting plate 301.

[0058] The outer sides of the plurality of mixing cylinders 3 are all sleeved with a first electromagnet ring 305, and the first electromagnet ring 305 and the metal ring 3012 are magnetically attracted. A limiting rod 3053 and a first reciprocating screw 3051 are provided on the outer sides of the mixing cylinder 3. The limiting rod 3053 and the first reciprocating screw 3051 both pass through the first electromagnet ring 305. The limiting rod 3053 is rotatably connected to the first electromagnet ring 305. The first reciprocating screw 3051 is connected to the first electromagnet ring 305 through a ball nut pair, and the first reciprocating screw 3051 and the limiting rod 3053 are both rotatably connected. Connected to the top of the turntable 2, the top of the first reciprocating screw rod 3051 is fixedly connected to the first gear 3052, the inner wall of the mixing barrel 3 is fixedly connected to the first inner gear ring 3054, the first inner gear ring 3054 is meshed with the first gear 3052, and the bottom of the first electromagnet ring 305 is fixedly connected to the traction wire 3025, the traction wire 3025 passes through the fixed disk 302 and is wrapped around the rotating disk 3021 and fixedly connected to the outside of the rotating disk 3021. When the first electromagnet ring 305 rises, the rotating disk 3021 is pulled by the traction wire 3025 to rotate.

[0059] In a specific implementation, when the turntable 2 rotates with the rotation rod 10, the first reciprocating screw 3051 on the outside of the mixing cylinder 3 is engaged with the first inner gear ring 3054 through the first gear 3052, thereby driving the first electromagnet ring 305 to rise. When the first electromagnet ring 305 rises, the magnetic attraction of the first electromagnet ring 305 when it is energized drives the metal ring 3012 on the lifting disk 301 inside the mixing cylinder 3 to rise. When the lifting disk 301 rises, the flow slots opened by the covering disk 3011 and the lifting disk 301 are staggered, thereby expanding the mixing capsule 303, causing the powder to be mixed. The powder is not fully in contact with the inside of the mixing capsule 303. When the lifting plate 301 rises to the top, the sliding shaft 3013 on the outside of the covering plate 3011 rotates under the guidance of the guide groove 3014, and the flow grooves on the covering plate 3011 and the lifting plate 301 overlap. At this time, part of the gas drives the powder to rise, and the mixing drum 3 rotates to the bottom of the water inlet pipe 101. At this time, the sewage flows into the mixing drum 3. The sewage first contacts the powder in the gas, and then enters the mixing capsule 303 inside the mixing drum 3 through the flow groove, and contacts the adhered powder inside the mixing capsule 303.

[0060] And when the mixing drum 3 rotates with the turntable 2, the lifting disk 301 descends. At this time, the covering disk 3011 is staggered with the flow slot opened by the lifting disk 301, the top of the mixing capsule 303 is closed, and the water outlet short pipe 3024 on the connecting disk 3022 slides with the top of the fixed frame 501 and is also in a closed state. When the lifting disk 301 descends, the liquid inside the mixing capsule 303 is compressed. At this time, the mixing capsule 303 expands, accelerating the combination of the liquid and powder inside and accelerating the precipitation of the filtrate. When the mixing drum 3 rotates to the connecting pipe 502 at the fixed frame 501, the sewage enters the connecting pipe 502 through the connecting pipe 502 and then passes through the switching plate 6 into the fixed drum 7 for filtration treatment. By compressing the mixing capsule 303, the catalytic treatment of the sewage by the catalytic powder in the sewage is accelerated.

[0061] In this solution, a plurality of conical springs 3026 are fixedly connected to the top of the rotating disk 3021. When the lifting disk 301 is rising, the conical springs 3026 are elastically bounced upward, and a traction wire 3025 is fixedly connected and wound around the outside of the rotating disk 3021. When the first electromagnet ring 305 rises, the traction wire 3025 pulls the rotating disk 3021 to rotate, thereby rotating the conical springs 3026, thereby increasing the contact with the powder. At the same time, when the first electromagnet ring 305 descends, the rotating disk 3021 is reset and rotated by the action of the clockwork spring 3023 fixedly connected between the rotating disk 3021 and the connecting disk 3022, thereby driving the conical spring 3026 to fully react with the liquid and the catalytic powder.

[0062] Example 3: Figures 9 to 12 As shown, a connecting ring 901 is provided on the inner side of the fixed cylinder 7, and a filter disc 902 is provided inside the connecting ring 901. The outer side of the filter disc 902 is fixedly connected to two rotating shafts 9021. The two rotating shafts 9021 pass through the outside of the connecting ring 901 and extend to the inside of the connecting ring 901 and are rotatably connected to the connecting ring 901, and a torsion spring 9022 is sleeved on the outer side of the rotating shaft 9021. The two ends of the torsion spring 9022 are respectively fixedly connected to the connecting ring 901 and the rotating shaft 9021. A plurality of second telescopic rods 903 and a second spring 904 are fixedly connected between the connecting ring 901 and the bottom end of the fixed cylinder 7, and the second spring 904 is sleeved on the outer side of the second telescopic rod 903. A first magnetic ring 9023 is fixedly connected to the top of the filter disc 902, and a second magnetic ring 9024 is fixedly connected to the bottom of the filter disc 902. Two limit plates 905 are fixedly connected to the inner wall of the fixed cylinder 7. The limit plate 905 is arranged on the top of the filter disc 902 and fits with the top of the filter disc 902.

[0063] In specific implementation, when sewage enters the fixed cylinder 7, a connecting ring 901 is set inside the fixed cylinder 7, and a filter disc 902 is set inside the connecting ring 901. The sewage is filtered through the filter disc 902, and the filtered sewage passes through the mounting disc 8 and enters the drain pipe 801 for discharge for subsequent treatment. The filtered material is at the top of the filter disc 902, and as the rotating rod 10 rotates, the next fixed cylinder 7 is rotated to the bottom of the connecting pipe 502, and the sewage is continuously treated to ensure the efficiency of the sewage.

[0064] In this embodiment, Figures 11 to 12 As shown, the cleaning assembly includes a guide plate 701, a plurality of cleaning brushes 708 are fixedly connected to the bottom of the guide plate 701, two connecting plates 702 are fixedly connected to the outside of the guide plate 701, a sliding groove is provided on the outside of the fixed cylinder 7, the connecting plates 702 pass through the sliding groove and are slidably connected to the fixed cylinder 7, the bottoms of the two connecting plates 702 are fixedly connected to the first telescopic rod 705, the bottom of the first telescopic rod 705 is fixedly connected to the contact plate 707, and a first spring 706 is fixedly connected between the first telescopic rod 705 and the connecting plate 702.

[0065] The cleaning assembly also includes a second reciprocating screw 703 arranged on the outside of the fixed cylinder 7. The second reciprocating screw 703 passes through one of the connecting plates 702 and is connected to the connecting plate 702 by a ball nut pair, and the bottom of the second reciprocating screw 703 is rotatably connected to the fixed cylinder 7. The top of the second reciprocating screw 703 is fixedly connected to a second gear 709, and the inner wall of the processing tank 1 is fixedly connected to a second inner ring gear 710. The second inner ring gear 710 is meshed with the second gear 709. Two second electromagnets 906 are fixedly connected to the bottom of the mounting plate 8. After the second electromagnet 906 is energized, it magnetically repels the second magnetic ring 9024 and is magnetically attracted to the first magnetic ring 9023. The two second electromagnets 906 are respectively arranged on the outside of the two discharge pipes 803.

[0066] The radius of the guide plate 701 is consistent with that of the filter plate 902 .

[0067] In specific implementation, when the filter disc 902 inside the fixed cylinder 7 has finished filtering, the fixed cylinder 7 rotates. When the fixed cylinder 7 rotates, the second reciprocating screw rod 703 outside the fixed cylinder 7 engages with the second inner gear ring 710 through the second gear 709, so that the second reciprocating screw rod 703 rotates, and then drives the guide disc 701 to descend through the connecting plate 702. The guide disc 701 descends, so that the contact plate 707 at the bottom of the connecting plate 702 contacts the connecting ring 901. Since the first spring 706 at the top of the contact plate 707 has a greater force than the second spring 904, the contact plate 707 is pushed first. The movable connecting ring 901 descends, and as the connecting ring 901 descends and the fixed cylinder 7 rotates to the top of the second electromagnet 906, the second electromagnet 906 is energized and magnetically repels the second magnetic ring 9024. Therefore, under the action of the repulsive force, the filter disc 902 is quickly flipped. When the filter disc 902 cannot move, the first spring 706 between the contact plate 707 and the connecting plate 702 is compressed. At this time, the cleaning brush 708 at the bottom of the guide plate 701 cleans the filtering side of the filter disc 902 from the top downward, so that the cleaning brush 708 passes through the filter disc 902 to clean the filter disc 90 2 for complete cleaning. After the filter disc 902 is flipped over, the cleaning brush 708 at the bottom of the guide disc 701 moves downward from the top of the filter surface. The hard nylon burr of the cleaning brush has a diameter of 0.1-0.5mm and passes through the filter hole with an aperture of 0.5-2mm to perform two-way cleaning of the residue in the hole: as the fixed cylinder 7 rotates the position of the discharge pipe 803, the cleaned filter material is discharged through the discharge pipe 803. At this time, the second reciprocating screw 703 drives the guide disc 701 to rise through the connecting plate 702, while the first magnetic ring 9023 and the second electromagnet 906 are in magnetic attraction and cannot move upward. When the first magnetic ring 9023 moves out from above the second electromagnet 906, the connecting ring 901 is pushed up by the action of the second spring 904. During the rising process, the filter disc 902 is flipped and reset by the action of the torsion spring 9022, so that the filter surface of the filter disc 902 is automatically flipped and cleaned each time, avoiding the existing cleaning method of often only scraping and flushing the filter side of the filter screen, and a large amount of filtered matter may adhere to the gaps in the filter holes. This mechanism realizes fully automatic deep cleaning of the filter disc through electromagnetically driven flipping + penetrating cleaning brush + spring priority control.

[0068] It is worth mentioning that a foldable sealing gasket can be provided on the chute opened on the outside of the fixed cylinder 7, and a foldable sealing gasket can be provided on the top and bottom of the connecting plate 702 to prevent sewage leakage. The top of the guide plate 701 can block the sewage to prevent the sewage from directly impacting the filter plate 902, so that the sewage descends along the side wall of the fixed cylinder 7, thereby allowing the filter plate 902 to be evenly filtered.

[0069] A method for automated treatment of wastewater from chlorophenyl isocyanate processing comprises the following steps:

[0070] Step 1: Catalyst powder is injected into the mixing bag 303 inside the fixed cylinder 7 through the external blowing device, and the powder adheres to the inner wall of the mixing bag 303. Then, sewage is injected into the mixing cylinder 3 through the water inlet pipe 101, and enters the mixing bag 303 through the lifting plate 301, so that the sewage and powder are fully in contact;

[0071] Step 2: The external motor drives the rotating rod 10 to rotate, and the rotating rod 10 drives the rotating disk 2 to rotate. At this time, the lifting plate 301 descends to squeeze the sewage inside the mixing bag 303, causing the mixing bag 303 to expand. When it rotates to the connecting pipe 502, the sewage flows into the fixed cylinder 7;

[0072] Step 3: The sewage filters the suspended matter inside the fixed cylinder 7 and is discharged through the discharge pipe 803 . When the rotating rod 10 rotates, the cleaning component inside the fixed cylinder 7 discharges the filtered suspended matter inside the fixed cylinder 7 into the discharge pipe 803 .

[0073] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0074] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0075] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated wastewater treatment device for the processing of parachlorophenyl isocyanate, comprising a treatment tank (1), wherein the top of the treatment tank (1) is provided with two water inlet pipes (101) for inletting water, characterized in that: Also includes: A rotating rod (10), the rotating rod (10) passes through the top of the treatment tank (1) and is rotatably connected to the treatment tank (1); a rotating disk (2) is rotatably connected to the outside of the rotating rod (10); a plurality of mixing barrels (3) are fixedly connected to the top of the rotating disk (2); a first ring plate (102) is fixedly connected between the tops of the plurality of mixing barrels (3); and the tops of the mixing barrels (3) are connected to the water inlet pipe (101); a connecting frame (4) for discharging catalytic powder is provided at the bottom of the rotating disk (2); a lifting disk (301) is provided inside the plurality of mixing barrels (3); the bottoms of the mixing barrels (3) are fixedly connected to the fixed disk (302); and an expandable mixing capsule (303) is fixedly connected between the lifting disk (301) and the fixed disk (302); A fixing frame (501), the fixing frame (501) is fixedly connected to the inner wall of the processing tank (1), and two connecting pipes (502) are fixedly connected inside the fixing frame (501), and the two connecting pipes (502) are respectively connected to the mixing barrel (3); The filtering mechanism comprises a switching plate (6), the switching plate (6) is fixedly connected to the outside of the rotating rod (10), and the bottom of the switching plate (6) is fixedly connected to a plurality of fixed cylinders (7) for filtering, the bottoms of the plurality of fixed cylinders (7) are slidably connected to a mounting plate (8), and the mounting plate (8) is fixedly connected to the inner wall of the processing tank (1), the bottom of the mounting plate (8) is fixedly connected to two drain pipes (801) and two discharge pipes (803), and a cleaning component is provided inside the fixed cylinder (7); The fixed disk (302) is rotatably connected to a rotating disk (3021) inside, and the rotating disk (3021) is rotatably connected to a connecting disk (3022) inside. A spring spring (3023) is provided inside the rotating disk (3021), and two ends of the spring spring (3023) are fixedly connected to the rotating disk (3021) and the connecting disk (3022), respectively. A plurality of conical springs (3026) are fixedly connected to the top of the rotating disk (3021); A connecting ring (901) is provided on the inner side of the fixed cylinder (7), a filter disc (902) is provided inside the connecting ring (901), and two rotating shafts (9021) are fixedly connected to the outer side of the filter disc (902), and the two rotating shafts (9021) pass through the outer side of the connecting ring (901) and extend to the inner side of the connecting ring (901) to be rotatably connected to the connecting ring (901), and a torsion spring (9022) is provided on the outer side of the rotating shaft (9021), and the two ends of the torsion spring (9022) are fixedly connected to the connecting ring (901) and the rotating shaft (9021) respectively. 01) and the inner bottom end of the fixed cylinder (7) are fixedly connected with a plurality of second telescopic rods (903) and a second spring (904), and the second spring (904) is sleeved on the outside of the second telescopic rod (903), the top of the filter disc (902) is fixedly connected with a first magnetic ring (9023), the bottom of the filter disc (902) is fixedly connected with a second magnetic ring (9024), and the inner wall of the fixed cylinder (7) is fixedly connected with two limit plates (905), and the limit plates (905) are arranged on the top of the filter disc (902) and fit with the top of the filter disc (902).

2. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 1, characterized in that: The bottom of the connecting plate (3022) is fixedly connected to a water outlet short pipe (3024), which is connected to the mixing capsule (303). The top of the connecting frame (4) is rotatably connected to a rotating cover plate (401). The connecting frame (4) is fixedly connected to the inner wall of the processing tank (1). The connecting frame (4) is connected to an external blowing device through a branch pipe. The middle of the connecting plate (3022) is fixedly connected to a powder inlet pipe (402), which is fixedly connected to the rotating cover plate (401). The powder is blown into the mixing capsule (303) through the powder inlet pipe (402) by the blowing device.

3. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 1, characterized in that: The top of the lifting disk (301) is rotatably connected to a covering disk (3011), and the tops of the lifting disk (301) and the covering disk (3011) are both provided with staggered circulation grooves. A guide groove (3014) is provided on the inner side of the mixing barrel (3). A sliding shaft (3013) is fixedly connected to the outer side of the covering disk (3011), and the sliding shaft (3013) extends to the inside of the guide groove (3014) provided on the inner side of the mixing barrel (3). When the sliding shaft (3013) is at the top of the guide groove (3014), the covering disk (3011) and the circulation groove provided on the top of the lifting disk (301) overlap, and a metal ring (3012) is fixedly connected to the outer side of the lifting disk (301).

4. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 3, characterized in that: The outer sides of the plurality of mixing cylinders (3) are all sleeved with a first electromagnet ring (305), and the first electromagnet ring (305) and the metal ring (3012) are attracted by magnetism. A limiting rod (3053) and a first reciprocating screw (3051) are provided on the outer sides of the mixing cylinders (3). The limiting rod (3053) and the first reciprocating screw (3051) both pass through the first electromagnet ring (305). The limiting rod (3053) and the first reciprocating screw (3051) are rotatably connected to the first electromagnet ring (305). The first reciprocating screw (3051) and the first electromagnet ring (305) are connected via a ball nut pair, and the first reciprocating screw (3051) and the limiting rod (3053) are rotatably connected to each other. The first reciprocating screw rod (3051) is connected to the top of the rotating disk (2), and the top of the first reciprocating screw rod (3051) is fixedly connected to the first gear (3052). The inner wall of the mixing barrel (3) is fixedly connected to the first inner gear ring (3054). The first inner gear ring (3054) is meshed with the first gear (3052). The bottom of the first electromagnet ring (305) is fixedly connected to the traction wire (3025). The traction wire (3025) passes through the fixed disk (302) and is wound around the rotating disk (3021) and is fixedly connected to the outside of the rotating disk (3021). When the first electromagnet ring (305) rises, the traction wire (3025) pulls the rotating disk (3021) to rotate.

5. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 4, characterized in that: The cleaning assembly comprises a guide plate (701), a plurality of cleaning brushes (708) are fixedly connected to the bottom of the guide plate (701), two connecting plates (702) are fixedly connected to the outside of the guide plate (701), a sliding groove is provided on the outside of the fixed cylinder (7), the connecting plates (702) pass through the sliding groove and are slidably connected to the fixed cylinder (7), the bottoms of the two connecting plates (702) are fixedly connected to a first telescopic rod (705), the bottom of the first telescopic rod (705) is fixedly connected to a contact plate (707), and a first spring (706) is fixedly connected between the first telescopic rod (705) and the connecting plates (702).

6. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 5, characterized in that: The cleaning assembly further comprises a second reciprocating screw (703) arranged on the outside of the fixed cylinder (7), the second reciprocating screw (703) passes through one of the connecting plates (702) and is connected to the connecting plate (702) via a ball nut pair, and the bottom of the second reciprocating screw (703) is rotatably connected to the fixed cylinder (7), the top of the second reciprocating screw (703) is fixedly connected to a second gear (709), the inner wall of the processing tank (1) is fixedly connected to a second inner gear ring (710), the second inner gear ring (710) is meshed with the second gear (709), and two second electromagnets (906) are fixedly connected to the bottom of the mounting plate (8), and when the second electromagnet (906) is energized, it magnetically repels the second magnetic ring (9024) and magnetically attracts the first magnetic ring (9023), and the two second electromagnets (906) are respectively arranged on the outside of the two discharge pipes (803).

7. The automated wastewater treatment device for p-chlorophenyl isocyanate processing according to claim 6, characterized in that: The radius of the guide plate (701) is consistent with that of the filter plate (902).

8. A method for automatically treating wastewater from the processing of chlorophenyl isocyanate, applicable to the automated wastewater treatment device from the processing of p-chlorophenyl isocyanate according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Catalyst powder is injected into the mixing capsule (303) inside the fixed cylinder (7) through an external air blowing device, and the powder is adhered to the inner wall of the mixing capsule (303). Then, sewage is injected into the mixing cylinder (3) through the water inlet pipe (101), and enters the mixing capsule (303) through the lifting plate (301), so that the sewage and the powder are fully in contact; Step 2: The external motor drives the rotating rod (10) to rotate, and the rotating rod (10) drives the rotating disk (2) to rotate. At this time, the lifting disk (301) descends to squeeze the sewage inside the mixing bag (303), causing the mixing bag (303) to expand. When the mixing bag rotates to the connecting pipe (502), the sewage flows into the fixed cylinder (7); Step 3: The sewage filters the suspended matter inside the fixed cylinder (7) and is discharged through the discharge pipe (803). When the rotating rod (10) rotates, the cleaning component inside the fixed cylinder (7) discharges the filtered suspended matter inside the fixed cylinder (7) into the discharge pipe (803).

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