Nylon 66 production wastewater treatment integrated equipment

Abstract

The invention discloses nylon 66 production wastewater treatment integrated equipment, and relates to the field of wastewater treatment.The nylon 66 production wastewater treatment integrated equipment comprises a treatment box, a mixing box is installed on one side of the treatment box, a water inlet pipe is arranged at the top of the mixing box, an agent box is arranged at the top of the water inlet pipe, and the agent box and the mixing box are connected through a connecting pipe; a water outlet of the mixing box is connected with a transfer box, a water outlet of the transfer box is connected with a spiral pipe, and the water outlet end of the spiral pipe is connected with the treatment box. According to the device, wastewater and a medicament are mixed in the mixing box, and are fully mixed again through the transfer box and the spiral pipe, so that the contact degree of the medicament and the wastewater and the subsequent flocculation effect are effectively improved, the wastewater then enters the precipitation tank, the transfer tank and the supernate separation tank, flocculated precipitates are sequentially separated, and the flocculation effect is improved. The removal of suspended matters in the wastewater in the pretreatment stage is ensured, and the wastewater treatment effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and in particular to integrated equipment for treating nylon 66 production wastewater. Background Art

[0002] Poly(hexamethylene adipamide), commonly known as nylon 66, is a thermoplastic resin typically produced by the polycondensation of adipic acid and hexamethylenediamine. It is insoluble in common solvents and is soluble only in solvents such as m-cresol. It exhibits high mechanical strength, hardness, and rigidity, making it suitable for use as an engineering plastic, mechanical accessories such as gears and lubricated bearings, and as a replacement for nonferrous metals in machine casings and automotive engine blades. It can also be used to make synthetic fibers.

[0003] Nylon 66 produces wastewater during production, and the pretreatment of the wastewater is generally achieved through the process of screen-equalization tank-coagulation. The nylon production wastewater passes through the screen to intercept larger pollutants and floating oil and then enters the oil separation and equalization tank for homogenization and equalization. Subsequently, the polyester production wastewater is lifted to the coagulation tank through a lifting pump, and reagents are added for flocculation reaction. The fine suspended matter in the water is coagulated to form sediment, thereby removing most of the suspended matter and some organic pollutants.

[0004] However, in the actual pretreatment process, the degree of wastewater flocculation reaction depends on the degree of contact between the wastewater and the reagent. The higher the contact degree, the better the flocculation effect. Otherwise, some suspended matter in the wastewater may not be flocculated, affecting the subsequent treatment effect. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an integrated device for treating nylon 66 production wastewater to solve the technical problem that general wastewater cannot be completely contacted with reagents, resulting in general flocculation effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated nylon production wastewater treatment device, comprising a treatment box, a mixing box installed on one side of the treatment box, a water inlet pipe provided on the top of the mixing box, a medicine box provided on the top of the water inlet pipe, the medicine box and the mixing box are connected by a connecting pipe, the water outlet of the mixing box is connected to a transfer box, the water outlet of the transfer box is connected to a spiral tube, the water outlet end of the spiral tube is connected to the treatment box, and the interior of the treatment box is divided into a sedimentation tank, a transfer tank and a supernatant separation tank by a first partition and a second partition respectively.

[0007] The present invention is further configured such that ultrasonic generators are installed on both the inner side wall of the processing box and the side wall of the first partition, and the height of the first partition is lower than that of the second partition.

[0008] The present invention is further configured such that a valve is installed at the bottom of the second partition.

[0009] The present invention is further configured such that a fixed shell is provided on the outside of one side of the processing box, a plurality of layers are slidingly provided on the inner wall of the fixed shell, a guide plate is rotatably provided on one side of the processing box, and a telescopic cylinder is installed on one side of the guide plate inside the fixed shell.

[0010] The present invention is further configured such that a connecting plate is provided on the contact surface between the guide plate and the fixed shell.

[0011] The present invention is further configured such that the layer plate is an arc-shaped plate structure, and the inner wall of the fixed shell is provided with a through groove matching the layer plate.

[0012] The present invention is further configured as follows: a medicine storage tube is rotatably provided inside the mixing box, a plurality of rotating plates are provided on the outer wall of the medicine storage tube, a movable sleeve is provided inside the rotating plate, one end of the movable sleeve passes through the outer wall of the medicine storage tube and extends to the interior of the medicine storage tube, a pressure plate is provided at one end of the medicine storage tube, the side wall of the pressure plate is in close contact with the inner wall of the rotating plate, and a through hole is provided on one side of the pressure plate, the medicine in the medicine storage tube flows through the inner hole of the movable sleeve and the through hole to one side of the pressure plate, a plurality of nozzles are provided on the outer wall of the rotating plate, a fixed plate is fixedly provided on the inner wall of the rotating plate, a group of connecting columns are passed through one side of the fixed plate, a limiting column is provided at one end of the connecting column, and a limiting groove matching the limiting column is provided on the side wall of the mixing box.

[0013] The present invention is further configured such that the inner wall of the spiral tube is provided with a plurality of blocks, and the blocks are in a cross shape.

[0014] The present invention is further configured such that a plurality of first suspended matter sensors are installed on the side wall of the first partition plate, and a second suspended matter sensor is installed on the side wall of the guide plate.

[0015] The present invention is further configured such that the connecting plate is a rubber plate.

[0016] In summary, the present invention mainly has the following beneficial effects: the present invention effectively improves the contact degree between the reagent and the wastewater and the subsequent flocculation effect by mixing the wastewater and the reagent in a mixing box and fully mixing them again through a transfer box and a spiral tube. The wastewater then enters the sedimentation tank, the transfer tank and the supernatant separation tank, and the flocculated precipitate is separated in turn, ensuring the removal of suspended matter in the wastewater in the pretreatment stage, and effectively improving the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the mixing box of the present invention;

[0019] Figure 3 This is a front view of the internal structure of the mixing box of the present invention;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the rotating plate of the present invention;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention from a second viewing angle;

[0022] Figure 6 This is a schematic diagram of the internal structure of the processing box of the present invention;

[0023] Figure 7 Schematic diagram of the internal structure of the fixed shell of the present invention.

[0024] In the figure: 1. treatment box; 2. water inlet pipe; 3. mixing box; 4. medicine box; 5. connecting pipe; 6. medicine storage pipe; 7. rotating plate; 8. movable sleeve; 9. connecting column; 10. limiting groove; 11. pressure plate; 12. nozzle; 13. transfer box; 14. spiral tube; 15. block; 16. ultrasonic generator; 17. first partition; 18. second partition; 19. valve; 20. first suspended matter sensor; 21. guide plate; 22. second suspended matter sensor; 23. layer plate; 24. telescopic cylinder; 25. connecting plate; 26. fixed plate. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0026] The following describes an embodiment of the present invention based on its overall structure.

[0027] An integrated equipment for treating nylon 66 production wastewater, such as Figure 1-7 As shown, it includes a treatment box 1 for treating wastewater mixed with flocculants. The interior of the treatment box 1 is divided into a sedimentation tank, a transfer tank and a supernatant separation tank in sequence by a first partition 17 and a second partition 18.

[0028] A mixing box 3 is installed on one side of the treatment box 1, and a water inlet pipe 2 is provided on the top of the mixing box 3. A medicine box 4 is provided on the top of the water inlet pipe 2. The medicine box 4 and the mixing box 3 are connected by a connecting pipe 5. A medicine storage pipe 6 is provided inside the mixing box 3. The medicine in the medicine box 4 enters the medicine storage pipe 6 in the mixing box 3 through the connecting pipe 5, and the wastewater enters the mixing box 3 through the water inlet pipe 2.

[0029] The outer wall of the medicine storage tube 6 is provided with a plurality of rotating plates 7, and the interior of the rotating plate 7 is provided with a movable sleeve 8. One end of the movable sleeve 8 passes through the outer wall of the medicine storage tube 6 and extends to the interior of the medicine storage tube 6. A pressing plate 11 is provided at one end of the medicine storage tube 6. The side wall of the pressing plate 11 is in close contact with the inner side wall of the rotating plate 7, and a through hole is provided on one side of the pressing plate 11. The medicine in the medicine storage tube 6 flows through the inner hole of the movable sleeve 8 and the through hole to one side of the pressing plate 11. The outer wall of the rotating plate 7 is provided with a plurality of nozzles 12, and the inner side wall of the rotating plate 7 is fixedly provided with a fixed plate 26. A group of connecting columns 9 are provided on one side of the fixed plate 26. A limiting column is provided at one end of the connecting column 9. A limiting groove 10 that cooperates with the limiting column is provided on the side wall of the mixing box 3. When wastewater enters the mixing box 3, it will push the rotating plate 7 and the medicine storage tube 6 to rotate. When the rotating plate 7 rotates clockwise, the limiting column will move along the limiting groove 10. At this time, the connecting column 9 and the limiting column will pull the pressing plate 11 under the action of the limiting groove 10, and then move in the direction close to the medicine storage tube 6, and then move in the direction away from the medicine storage tube 6. Since the medicine flows through the inner hole of the movable sleeve 8 and the through hole to one side of the pressing plate 11, when the pressing plate 11 moves in the direction away from the medicine storage tube 6, the medicine will be squeezed and sprayed out from the nozzle 12. Since the side wall of the pressing plate 11 is in close contact with the inner side wall of the rotating plate 7, the movement of the pressing plate 11 will play a role similar to that of a piston, so that the medicine can be sprayed out smoothly.

[0030] Furthermore, a one-way valve is installed inside the through hole of the pressing plate 11, and the medicine can only enter the interior of the rotating plate 7 from the through hole and cannot move in the opposite direction. When the pressing plate 11 squeezes out the medicine, the medicine inside the medicine storage tube 6 will be replenished.

[0031] At the same time, the movement trajectory of the connecting column 9 and the limiting column inside the limiting groove 10 is set as follows: when the rotating plate 7 rotates to the water outlet position of the water inlet pipe 2, the pressure plate 11 just pushes the agent out, so the agent can be gradually added during the movement of the wastewater, instead of adding a large amount of agent at one time. The mixing effect of the wastewater and the agent is better. At the same time, the rotation of the rotating plate 7 is achieved by the movement of the wastewater, and no additional power unit is required.

[0032] The water outlet of the mixing box 3 is connected to the transfer box 13, and the water outlet of the transfer box 13 is connected to the spiral tube 14. The water outlet end of the spiral tube 14 is connected to the treatment box 1. After the wastewater in the mixing box 3 is mixed with the reagent, the wastewater then enters the transfer box 13 and then enters the spiral tube 14. The wastewater is further mixed in the spiral tube 14, which effectively increases the mixing time of the wastewater and the reagent. The inner wall of the spiral tube 14 is provided with a plurality of blocks 15, and the block 15 is in a cross shape. The cross-shaped block 15 blocks the forward route of the wastewater, which will further increase the mixing time of the reagent and the wastewater.

[0033] Ultrasonic generators 16 are installed on the inner wall of the treatment box 1 and the side wall of the first partition 17. The height of the first partition 17 is lower than the height of the second partition 18. The wastewater after mixing enters the sedimentation tank of the treatment box 1 for sedimentation. The ultrasonic generator 16 can effectively remove suspended matter. The supernatant of the wastewater after sedimentation flows from the top of the first partition 17 to the transfer tank, and then enters the supernatant separation tank from the bottom of the second partition 18. The function of the second partition 18 is to prevent the supernatant from falling directly from a high place to a low place, and disturbing the wastewater that has already been precipitated again, so it enters from the bottom of the second partition 18, which effectively improves the stability of the wastewater during movement.

[0034] A fixed shell is provided on the outside of one side of the treatment box 1, and a plurality of layer plates 23 are slidingly provided on the inner wall of the fixed shell. A guide plate 21 is rotatably provided on one side of the treatment box 1. A telescopic cylinder 24 is installed on one side of the guide plate 21 inside the fixed shell. The layer plates 23 are arc-shaped plate structures, and a through groove matching the layer plates 23 is provided on the inner wall of the fixed shell. The wastewater in the supernatant separation tank is precipitated again, and the wastewater is divided into supernatant and precipitate. The telescopic cylinder 24 is started, and the telescopic cylinder 24 is contracted, the guide plate 21 is turned outward, and the layer plates 23 are moved along the through groove. At this time, the supernatant will flow along the The guide plate 21 flows to the top of the layer plate 23 and then enters the next process for deep treatment. The discharge of the supernatant through the guide plate 21 is relatively gentle and will not interfere with the sedimentation at the bottom. The contact surface between the guide plate 21 and the fixed shell is provided with a connecting plate 25. The connecting plate 25 is a rubber plate. When the guide plate 21 rotates, the rubber connecting plate 25 can bend and adapt to the gap, effectively preventing the wastewater from entering the interior of the fixed shell when the guide plate 21 rotates. At the same time, sliding seals are provided between the layer plates 23 and between the layer plates 23 and the fixed shell, which further improves the sealing effect.

[0035] As the cleaning time progresses, more and more sediment accumulates inside the treatment box 1, making it difficult to separate the supernatant. A plurality of first suspended solids sensors 20 are installed on the side walls of the first partition 17, a second suspended solids sensor 22 is installed on the side walls of the guide plate 21, and a valve 19 is installed on the bottom of the second partition 18. The first suspended solids sensor 20 and the second suspended solids sensor 22 are based on infrared scattered light technology, that is, the infrared light emitted by the light source will be scattered when passing through the wastewater during transmission, and the intensity of the scattered light is proportional to the concentration of suspended solids. Therefore, when there are too many suspended solids, that is, too much sediment, the supernatant separation effect is not good. At this time, sedimentation cleaning work can be performed, and the valve 19 can be closed to clean the sediment in the supernatant separation tank and the sedimentation tank. The cleaning method can be suction or bottom discharge. It is not a major innovation, so it is not described in detail.

[0036] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. An integrated device for treating nylon 66 production wastewater, comprising a treatment tank (1), characterized in that: A mixing box (3) is installed on one side of the treatment box (1), a water inlet pipe (2) is provided on the top of the mixing box (3), a medicine box (4) is provided on the top of the water inlet pipe (2), the medicine box (4) and the mixing box (3) are connected via a connecting pipe (5), the water outlet of the mixing box (3) is connected to a transfer box (13), the water outlet of the transfer box (13) is connected to a spiral tube (14), the water outlet end of the spiral tube (14) is connected to the treatment box (1), and the interior of the treatment box (1) is divided into a sedimentation tank, a transfer tank and a supernatant separation tank in sequence by a first partition (17) and a second partition (18).

2. The integrated equipment for treating nylon 66 production wastewater according to claim 1, characterized in that: Ultrasonic wave generators (16) are installed on the inner side wall of the processing box (1) and the side wall of the first partition (17), and the height of the first partition (17) is lower than the height of the second partition (18).

3. The integrated equipment for treating nylon 66 production wastewater according to claim 1, characterized in that: A valve (19) is installed at the bottom of the second partition (18).

4. The integrated equipment for treating nylon 66 production wastewater according to claim 1, characterized in that: A fixed shell is provided on the outside of one side of the processing box (1), and a plurality of layer plates (23) are slidably provided on the inner wall of the fixed shell. A guide plate (21) is rotatably provided on one side of the processing box (1), and a telescopic cylinder (24) is installed on one side of the guide plate (21) located inside the fixed shell.

5. The integrated equipment for treating nylon 66 production wastewater according to claim 4, characterized in that: A connecting plate (25) is provided on the contact surface between the guide plate (21) and the fixed shell.

6. The integrated equipment for treating nylon 66 production wastewater according to claim 4, characterized in that: The layer plate (23) is an arc-shaped plate structure, and the inner wall of the fixed shell is provided with a through groove matching the layer plate (23).

7. The integrated equipment for treating nylon 66 production wastewater according to claim 1, characterized in that: A drug storage tube (6) is rotatably provided inside the mixing box (3), a plurality of rotating plates (7) are provided on the outer wall of the drug storage tube (6), a movable sleeve (8) is provided inside the rotating plate (7), one end of the movable sleeve (8) passes through the outer wall of the drug storage tube (6) and extends to the inside of the drug storage tube (6), a pressing plate (11) is provided at one end of the drug storage tube (6), the side wall of the pressing plate (11) is in close contact with the inner side wall of the rotating plate (7), and one side of the pressing plate (11) is provided with a The medicine in the medicine storage tube (6) flows through the inner hole of the movable sleeve (8) through the through hole to one side of the pressure plate (11), the outer wall of the rotating plate (7) is provided with a plurality of nozzles (12), the inner side wall of the rotating plate (7) is fixedly provided with a fixed plate (26), one side of the fixed plate (26) is provided with a group of connecting columns (9), one end of the connecting column (9) is provided with a limiting column, and the side wall of the mixing box (3) is provided with a limiting groove (10) that matches the limiting column.

8. The integrated equipment for treating nylon 66 production wastewater according to claim 1, characterized in that: The inner wall of the spiral tube (14) is provided with a plurality of stoppers (15), and the stoppers (15) are in a cross shape.

9. The integrated equipment for treating nylon 66 production wastewater according to claim 4, characterized in that: A plurality of first suspended matter sensors (20) are installed on the side wall of the first partition plate (17), and a second suspended matter sensor (22) is installed on the side wall of the guide plate (21).

10. The integrated equipment for treating nylon 66 production wastewater according to claim 5, characterized in that: The connecting plate (25) is a rubber plate.

Images