Filtering device for recycling chinlon spinning oil and using method of filtering device

Abstract

The invention discloses a filtering device for chinlon spinning oil recovery and a using method thereof, and relates to the technical field of chinlon spinning, the filtering device comprises a filtering bin, a purifying and recovering frame and a particle turning seat, the top end of the particle turning seat is provided with a particle impurity filtering frame through a rotating shaft, and the inner side of the particle impurity filtering frame is provided with an inclined filtering assembly; and the preliminary filter plate is movably mounted on the inner side of the inclined slot. According to the spinning oil filtering device, the preliminary filtering plate is movably mounted on the inner side of the inclined inserting groove, spinning oil is preliminarily filtered by the filtering grating after entering the filtering bin, and the preliminary filtering plate is obliquely mounted in the particle impurity filtering frame, so that the oil can smoothly pass through the preliminary filtering plate; the standing time of the oiling agent in the particle impurity filtering frame is shortened, so that the filtering speed is increased, the inclined preliminary filtering plate enables the oiling agent to pass through the particle impurity filtering frame more dispersedly, the risk of local blockage is reduced, the overall filtering speed is increased, the filtering precision is improved step by step, and the purity of the spinning oiling agent is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of nylon spinning, and in particular to a filtering device for recovering nylon spinning oil agent and a use method thereof. Background Art

[0002] Nylon spinning is a modified polypropylene fiber fabric made by the melt spinning method. Spinning oil is needed in the production process of nylon spinning. The main impurities and substances in the used nylon spinning oil include nylon spinning fiber debris, oil decomposition products, emulsifiers, preservatives, antibacterial agents and other tiny particles and chemicals that may be mixed in the production process. The presence of these impurities and substances will affect the purity and reuse value of the oil. The spinning oil recovery filter device is used to remove impurities in the oil, improve the purity of the oil and realize the reuse of the spinning oil.

[0003] The defects of the recovery and filtration device in the prior art are: 1. Patent document CN219964125U discloses a filtering device for recovering nylon spinning oil, which cannot allow the oil to pass through the filter screen smoothly, prolonging the residence time of the oil in the filter cylinder. The concentrated passage of the oil increases the risk of local blockage and cannot ensure the purity of the spinning oil.

[0004] 2. Patent document CN116180455A discloses a nylon spinning oil recovery device and a recovery method thereof. The spinning oil recovery device cannot quickly replace the matching filter components according to the size of the impurity particles in the spinning oil. The impurity particle interception effect is poor, resulting in low overall filtration efficiency, and cannot adapt to the recovery and processing needs of spinning oils of different types and concentrations.

[0005] 3. Patent document CN217661981U discloses a spinning oil filter device, in which a large amount of impurities will accumulate in the separation filter assembly during use. The accumulation of impurities will increase the filtration resistance and have an adverse effect on the filtration speed and effect.

[0006] 4. Patent document CN118403407A discloses a spinning oil filter device, which cannot accurately grasp the proportion of each component in the oil, cannot effectively remove specific additives in the oil, and cannot adapt to the processing requirements of various oils to ensure the quality and performance of the filtered oil. Summary of the invention

[0007] The object of the present invention is to provide a filtering device for recovering nylon spinning oil and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filtration device for recovering nylon spinning oil, comprising a filter bin, a purification recovery frame and a particle turning seat, wherein the purification recovery frame is installed on the outside of the filter bin, a stainless steel wire mesh plate is installed on the inside of the filter bin, a particle turning seat is arranged at the outer end of the stainless steel wire mesh plate, and a particle impurity filter frame is installed at the top of the particle turning seat through a rotating shaft; An inclined filter assembly is arranged on the inner side of the particle impurity filter frame, and the inclined filter assembly includes an inclined slot, a preliminary filter plate, a docking arc groove, an inner cross plate, a docking hand rod and a limiting arc block. The inclined slot is symmetrically arranged on the inner wall of the particle impurity filter frame, the preliminary filter plate is movably installed on the inner side of the inclined slot, a docking arc groove is arranged on the bottom of the preliminary filter plate, the inner cross plate is installed on the inner wall of the particle impurity filter frame, a docking hand rod is installed on the top of the inner cross plate, the limiting arc block is installed on the telescopic end of the docking hand rod, and the limiting arc block cooperates with the docking arc groove.

[0009] Preferably, an impurity discharge channel is provided on the outer side of the particle impurity filter frame, an oil agent drop port is provided on the bottom wall of the particle impurity filter frame, and the oil agent drop port is connected to the impurity discharge channel, and drip ports are provided through the top and bottom of the particle impurity filter frame, and a filter grille is installed on the inner side of the drip port.

[0010] Preferably, a lifting port 1 is penetrated through the top of the particle impurity filter frame, a lifting port 2 is opened on the bottom wall of the particle impurity filter frame, a bottom opening limit groove is opened on the bottom wall of the impurity discharge channel, a discharge rack is installed on the top of the particle impurity filter frame, a force unloading cylinder is installed on the top of the discharge rack, a particle falling plate is connected to the output end of the force unloading cylinder, and the particle falling plate passes through the inner sides of the lifting port 1 and the lifting port 2 in sequence and cooperates with the bottom opening limit groove.

[0011] Preferably, a guide rail is installed on the outer side of the stainless steel wire mesh plate, a reinforcement block is installed on the output end of the guide rail, and the reinforcement block is connected to the outer end of the particle turning seat.

[0012] Preferably, a turning guide groove is provided at the top of the particulate material turning seat, a lead screw is installed on the inner side of the turning guide groove, an articulated driving seat is sleeved on the outer side of the lead screw, and the outer end of the articulated driving seat slides on the inner wall of the turning guide groove, a turning motor is installed at the rear end of the particulate material turning seat, and the output end of the turning motor is connected to the input end of the lead screw, a guide pillar is installed on the inner side of the articulated driving seat, and the top of the guide pillar is hinged to the bottom of the particulate impurity filter frame, and a rectangular opening is symmetrically penetrated through the top of the particulate material turning seat.

[0013] Preferably, an oil regulating tank is installed at the top end of the outer side of the purification and recovery frame, a supply valve tube is installed at the bottom end of the oil regulating tank, a mixed flow motor is installed at the outer side of the purification and recovery frame, a neutralization adjustment frame is installed at the output end of the mixed flow motor, a plate activated carbon filter is installed on the inner wall of the purification and recovery frame, and the plate activated carbon filter is located above the neutralization adjustment frame, a one-way flow valve is installed between the filter bin and the purification and recovery frame, an oil composition measuring instrument is installed on the inner wall of the purification and recovery frame, and an oil circulation pump is installed on the outer side of the purification and recovery frame.

[0014] Preferably, a cleaning rack is installed on the top of the filter bin, a strong flushing nozzle is installed at the output end of the cleaning rack, and a guide frame is installed at the front end of the filter bin.

[0015] Preferably, a filter controller is installed on the outside of the filter bin, and the filter controller consists of a preliminary filter module, a waste cleaning module and a fine adjustment module. The preliminary filter module is electrically connected to the inclined filter assembly, the waste cleaning module is electrically connected to the unloading cylinder, the guide rail and the turning motor, the fine adjustment module is electrically connected to the purification recovery frame, and the fine adjustment module is electrically connected to the measurement and analysis supplement unit.

[0016] A method for using a nylon spinning oil recovery filter device is applicable to a nylon spinning oil recovery filter device. Preferably, the method for using the filter device comprises the following steps: Step S1, after the spinning oil enters the filter bin, it is initially filtered by the filter grid, the filtered oil falls down and is filtered again by the preliminary filter plate, and the filtered oil is filtered by the filter grid at the bottom and falls to the bottom side of the filter bin; Step S2, the guide rail drives the particle turning seat to move to the inner side of the top of the filter bin, and then the turning motor works to tilt and turn the particle impurity filter frame, and the particle impurities and sediments filtered out of the particle impurity filter frame fall from the guide frame through the opening; Step S3, the spinning oil after preliminary filtration is further pressurized and filtered through a stainless steel wire mesh plate and then flows from a one-way flow valve into a purification recovery frame.

[0017] Preferably, in step S1, the following steps are also included: Step S11, selecting a preliminary filter plate of corresponding thickness according to different nylon specifications in nylon production using spinning oil and inserting it into the inclined slot, and limiting it with a limiting arc block; In the step S2, the following steps are also included: Step S21, filtering impurities of different particles are respectively deposited on the filter grid and the surface of the preliminary filter plate; In step S3, the following steps are also included: Step S31, using an oil composition analyzer to measure the additive content in the spinning oil after filtration, using a chemical treatment method to adjust the pH value of the oil and remove different chemical additives.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has a preliminary filter plate movably installed on the inner side of the inclined slot. After the spinning oil enters the filter bin, the filter grille performs preliminary filtering on it. The filter grille physically intercepts and separates large particle impurities from the oil. The filtered oil falls and is filtered again by the preliminary filter plate. The filtered oil is filtered by the filter grille at the bottom and falls to the bottom side of the filter bin. The inclined installation of the preliminary filter plate in the particle impurity filter frame allows the oil to pass through the preliminary filter plate smoothly, reducing the residence time of the oil in the particle impurity filter frame and thus increasing the filtration speed. The inclined preliminary filter plate allows the oil to pass through the particle impurity filter frame more dispersedly, reducing the risk of local blockage. The multi-stage grille arrangement with gradually reduced aperture and the preliminary filter plate reduce the subsequent filtration burden of the stainless steel wire mesh plate, increase the overall filtration speed, and gradually increase the filtration accuracy to ensure the purity of the spinning oil.

[0019] 2. The present invention provides an inclined filter assembly on the inner side of the particle impurity filter frame, and a limiting arc block is used to limit the position of the preliminary filter plate after the preliminary filter plate is inserted into the inclined slot. The preliminary filter plate with a suitable aperture is selected according to the size of the impurity particles in the spinning oil. The filter plate aperture that matches the impurity particles can more effectively intercept the impurity particles and prevent small particle impurities from entering the subsequent treatment process, thereby improving the overall filtration efficiency, reducing the clogging of the preliminary filter plate and thus extending its service life, ensuring the stability and accuracy of the preliminary filter plate during installation, improving the sealing between the preliminary filter plate and the particle impurity filter frame, preventing leakage or damage due to improper installation, adapting to different types and concentrations of spinning oils, and improving the versatility and flexibility of the equipment.

[0020] 3. The present invention installs a particle impurity filter frame on the top of the particle turning seat through a rotating shaft. The particle impurity filter frame will accumulate a large amount of impurities during use. The accumulation of impurities leads to increased filtration resistance, affecting the filtration speed and effect. The guide rail drives the particle turning seat to move to the inner side of the top of the filter bin, and then the turning motor works to tilt and flip the particle impurity filter frame. Different particle impurities and sediments filtered out in the particle impurity filter frame fall from the guide frame through the opening. Automatic cleaning of impurities filtered out in the particle impurity filter frame avoids the adverse effect of impurity accumulation on the filtration effect of the filtration device, ensures the filtration speed and reduces the filtration burden of subsequent processing steps of the filtration device.

[0021] 4. The present invention installs a purification and recovery frame on the outside of the filter bin, and uses an oil composition analyzer to measure the additive content in the spinning oil after filtration. A chemical treatment method is used to adjust the pH value of the oil and remove different chemical additives. Accurate and reliable data on the additive content help to accurately grasp the proportion of each component in the oil, providing a basis for subsequent oil treatment. The pH value is adjusted according to the specific properties of the oil or a specific demulsifier is added to specifically destroy the stability of the emulsifier to achieve oil-water separation. The chemical treatment method can effectively remove specific additives in the oil and can adapt to the treatment requirements of various oils. Removing unnecessary chemical additives helps to improve the quality and performance of the oil, making it more in line with the requirements for recycling and use, and ensuring the stability of the nylon spinning production process and the consistency of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the particle impurity filter frame of the present invention; Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the particle turning seat of the present invention; Figure 5 It is a schematic diagram of the internal structure of the particle impurity filter frame of the present invention; Figure 6 It is a schematic diagram of the enlarged structure of point B of the present invention; Figure 7 This is a schematic diagram of the internal structure of the filter bin of the present invention; Figure 8 This is a schematic diagram of the internal structure of the purification and recovery frame of the present invention; Fig. 9 A diagram of a filter controller system of the present invention; Fig.10 It is the work flow chart of the present invention.

[0023] In the figure: 1. Filter bin; 2. Purification recovery frame; 3. Stainless steel wire mesh plate; 4. Particle turning seat; 5. Particle impurity filter frame; 6. Preliminary filter plate; 7. Discharge rack; 8. Filter controller; 9. Cleaning rack; 10. Powerful flushing nozzle; 11. Sediment discharge port; 12. Guide frame; 13. One-way flow valve; 14. Oil agent regulating tank; 15. Supply valve pipe; 16. Plate activated carbon filter; 17. Mixed flow motor; 18. Neutralization adjustment rack; 19. Oil agent component tester; 20. Oil agent circulation pump; 2 1. Guide rail for guiding and dropping; 22. Reinforced joint block; 23. Guide groove for turning material; 24. Lead screw; 25. Articulated drive seat; 26. Motor for turning material; 27. Guide pillar; 28. Rectangular drop opening; 29. ​​Drip opening; 30. Filter grille; 31. Inclined slot; 32. Oil drop opening; 33. Lifting opening 1; 34. Lifting opening 2; 35. Impurity discharge channel; 36. Bottom limit groove; 37. Docking arc groove; 38. Inner horizontal plate; 39. Docking hand lever; 40. Limiting arc block; 41. Unloading cylinder; 42. Particle falling plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection or a movable connection, or a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 , an embodiment provided by the present invention: a filtering device for recovering nylon spinning oil and a method for using the same; The invention comprises a particle impurity filter frame 5, a preliminary filter plate 6 and a limiting arc block 40. The inner side of the particle impurity filter frame 5 is provided with an inclined filter assembly, which comprises an inclined slot 31, a preliminary filter plate 6, a docking arc slot 37, an inner transverse plate 38, a docking hand lever 39 and a limiting arc block 40. The inclined slot 31 is symmetrically arranged on the inner wall of the particle impurity filter frame 5. The preliminary filter plate 6 is movably installed on the inner side of the inclined slot 31. The bottom of the preliminary filter plate 6 is provided with a docking arc slot 37. The inner transverse plate 38 is installed on the particle impurity filter frame 5. On the inner wall of the impurity filter frame 5, a docking handle 39 is installed on the top of the inner horizontal plate 38, a limiting arc block 40 is installed at the telescopic end of the docking handle 39, and the limiting arc block 40 cooperates with the docking arc groove 37, an impurity discharge channel 35 is opened on the outer side of the particle impurity filter frame 5, an oil agent drop port 32 is opened on the bottom wall of the particle impurity filter frame 5, and the oil agent drop port 32 is connected to the impurity discharge channel 35, and a drip port 29 is opened through the top and bottom of the particle impurity filter frame 5, and a filter grille 30 is installed on the inner side of the drip port 29; After the spinning oil enters the filter chamber 1, it falls through the dripping port 29 and is initially filtered by the filter grille 30 inside. The filtered oil falls and is filtered again by the preliminary filter plate 6. The filtered oil is filtered by the filter grille 30 at the bottom and falls to the bottom side of the filter chamber 1. According to the different nylon specifications of the spinning oil in nylon production, the preliminary filter plate 6 of corresponding coarseness is selected and inserted into the inclined slot 31. The inner horizontal plate 38 provides an installation position for the docking hand rod 39 while ensuring its stability during work. The docking hand rod 39 drives the limit arc block 40 to move upward. The connection in the docking arc groove 37 realizes the limiting of the preliminary filter plate 6, and the filter grille 30 physically intercepts and separates the large particle impurities from the oil agent. The inclined slot 31 and the inclined setting of the preliminary filter plate 6 in the particle impurity filter frame 5 enable the oil agent to pass through the preliminary filter plate 6 smoothly, reducing the residence time of the oil agent in the particle impurity filter frame 5. The inclined preliminary filter plate 6 enables the oil agent to pass through the particle impurity filter frame 5 more dispersedly, reducing the risk of local blockage. The multi-stage grille arrangement with gradually reduced aperture and the preliminary filter plate 6 reduce the subsequent filtering burden of the stainless steel wire mesh plate 3. The aperture of the preliminary filter plate 6 that matches the impurity particles can more effectively intercept the impurity particles and prevent small particle impurities from entering the subsequent processing flow. The tight and limited installation of the preliminary filter plate 6 ensures the stability and accuracy of the preliminary filter plate 6 during the installation process, improves the sealing between the preliminary filter plate 6 and the particle impurity filter frame 5, and prevents leakage or damage caused by improper installation. The preliminary filter plate 6 further removes small particles and tiny impurities in the oil agent and improves the purity of the oil agent. The automatic limiting and easy-to-replacement installation design of the preliminary filter plate 6 can greatly shorten the replacement time and reduce downtime.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 , a filtering device for recovering nylon spinning oil and a method for using the same; It comprises a preliminary filter plate 6, a filter grille 30 and a particle blocking plate 42. The preliminary filter plate 6 is movably installed on the inner side of the inclined slot 31. The top and bottom of the particle impurity filter frame 5 are penetrated with a dripping port 29. The filter grille 30 is installed on the inner side of the dripping port 29. The top of the particle impurity filter frame 5 is penetrated with a lifting port 1 33. The bottom wall of the particle impurity filter frame 5 is provided with a lifting port 2 34. The bottom wall of the impurity discharge channel 35 is provided with a bottom opening limit groove 36. The top of the particle impurity filter frame 5 is installed with a discharge rack 7. The top of the discharge rack 7 is installed with a force unloading cylinder 41. The output end of the force unloading cylinder 41 is connected to the particle blocking plate 42. The particle blocking plate 42 sequentially penetrates the inner sides of the lifting port 1 33 and the lifting port 2 34 and cooperates with the bottom opening limit groove 36. The filtering mesh numbers of the upper and lower groups of filter grilles 30 in the particle impurity filter frame 5 can be consistent, or the lower group of filter grilles 30 can be installed with a finer aperture to achieve a better filtering effect on the oil agent. The appropriate aperture of the filter grille 30 is selected according to the size distribution of the impurity particles in the oil agent. If the aperture is too large, impurity particles will pass through, affecting the filtering effect. If the aperture is too small, the filtering resistance will increase and the filtering speed will be reduced. The unloading frame 7 provides an installation position for the unloading cylinder 41. When the spinning oil agent is initially filtered, the bottom end of the particle drop plate 42 is inserted into the inner side of the bottom opening limit groove 36 to achieve the blocking of the opening of the particle impurity filter frame 5 to ensure the normal progress of the oil agent filtering process. After the oil agent is filtered, when the slag is discharged, the unloading cylinder 41 works to pull the particle drop plate 42 up and penetrate the inner side of the lifting port 2 34 and the lifting port 1 33 to remove the obstruction to the filtering impurities.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , a filtering device for recovering nylon spinning oil and a method for using the same; It comprises a stainless steel wire mesh plate 3, a particle turning seat 4 and a particle impurity filter frame 5. The stainless steel wire mesh plate 3 is installed on the inner side of the filter bin 1, the particle turning seat 4 is arranged on the outer end of the stainless steel wire mesh plate 3, the particle impurity filter frame 5 is installed on the top of the particle turning seat 4 through a rotating shaft, a guide rail 21 is installed on the outer side of the stainless steel wire mesh plate 3, a reinforcement block 22 is installed on the output end of the guide rail 21, and the reinforcement block 22 is connected to the outer end of the particle turning seat 4; A turning guide groove 23 is provided at the top of the particle turning seat 4, a lead screw 24 is installed on the inner side of the turning guide groove 23, an articulated drive seat 25 is sleeved on the outer side of the lead screw 24, and the outer end of the articulated drive seat 25 slides on the inner wall of the turning guide groove 23, a turning motor 26 is installed at the rear end of the particle turning seat 4, and the output end of the turning motor 26 is connected to the input end of the lead screw 24, a guide pillar 27 is installed on the inner side of the articulated drive seat 25, and the top end of the guide pillar 27 is hinged to the bottom of the particle impurity filter frame 5, and a rectangular drop 28 is symmetrically penetrated through the top of the particle turning seat 4; After the spinning oil agent after preliminary filtration falls to the bottom end of the filter bin 1, it is further pressurized and filtered by the stainless steel wire mesh plate 3. A large amount of impurities will accumulate in the particulate impurity filter frame 5 during use. The accumulation of impurities will increase the filtration resistance, affecting the filtration speed and effect. After the guide rail 21 drives the particulate matter turning seat 4 to move to the inner side of the top of the filter bin 1, the turning motor 26 works to drive the screw 24 to rotate. The rotation of the screw 24 causes the articulated drive seat 25 to slide horizontally on the inner side of the turning guide groove 23. As the horizontal distance between the articulated drive seat 25 and the particulate matter turning seat 4 and the rotating shaft connection end of the particulate impurity filter frame 5 changes, the guiding pillar 27 gradually supports the bottom end of the particulate impurity filter frame 5 to tilt and flip the particulate impurity filter frame 5. The different particulate impurities and sediments filtered out in the particulate impurity filter frame 5 fall from the guide frame 12 through the opening.

[0030] See also Figure 1 and Figure 2 , a filtering device for recovering nylon spinning oil and a method for using the same; It includes a stainless steel wire mesh plate 3, a particle turning seat 4 and a cleaning rack 9. The stainless steel wire mesh plate 3 is installed on the inner side of the filter bin 1, and the particle turning seat 4 is arranged at the outer end of the stainless steel wire mesh plate 3. A guide rail 21 is installed on the outer side of the stainless steel wire mesh plate 3. A reinforcement block 22 is installed at the output end of the guide rail 21, and the reinforcement block 22 is connected to the outer end of the particle turning seat 4. A cleaning rack 9 is installed on the top of the filter bin 1, and a strong flushing nozzle 10 is installed at the output end of the cleaning rack 9. A guide frame 12 is installed at the front end of the filter bin 1; When the particle impurity filter frame 5 performs preliminary filtering on the oil agent, the high filtering accuracy of the stainless steel wire mesh plate 3 will hinder the oil agent, and the oil agent will not enter the other side of the stainless steel wire mesh plate 3 directly without being filtered by the particle impurity filter frame 5. The stainless steel wire mesh plate 3 uses the pressure difference at the bottom end of the filter bin 1 as a driving force to deeply separate the tiny particles, colloidal substances, etc. in the oil agent, and the particle impurities separated by the stainless steel wire mesh plate 3 are discharged through the sediment discharge port 11 to ensure the purity and reuse value of the recovered oil agent. It has a smaller pore size and higher filtering accuracy, and can effectively remove small particle impurities and suspended matter in the oil agent. The reinforced connecting block 22 ensures the stability of the connection between the guide rail 21 and the particle turning seat 4. After the guide rail 21 drives the particle turning seat 4 to move to the inner side of the top of the filter bin 1, the turning motor 26 works to turn the particle impurity filter frame 5 over, and flushing water is sprayed from the strong flushing nozzle 10 to flush the particle impurity filter frame 5 after automatic discharge to ensure the cleanliness of the particle impurity filter frame 5 when it is used.

[0031] See also Figure 1 , Figure 7 , Figure 8 and Fig. 9 , a filtering device for recovering nylon spinning oil and a method for using the same; It includes a filter bin 1, a purification recovery frame 2 and a filter controller 8, the purification recovery frame 2 is installed on the outside of the filter bin 1, an oil agent regulating tank 14 is installed on the top of the outside of the purification recovery frame 2, and a supply valve pipe 15 is installed on the bottom of the oil agent regulating tank 14, a mixed flow motor 17 is installed on the outside of the purification recovery frame 2, and a neutralization adjustment frame 18 is installed on the output end of the mixed flow motor 17, a plate-type activated carbon filter 16 is installed on the inner wall of the purification recovery frame 2, and the plate-type activated carbon filter 16 is located above the neutralization adjustment frame 18, a one-way flow valve 13 is installed between the filter bin 1 and the purification recovery frame 2, an oil agent component measuring instrument 19 is installed on the inner wall of the purification recovery frame 2, and an oil agent circulation pump 20 is installed on the outside of the purification recovery frame 2; A filter controller 8 is installed on the outside of the filter bin 1. The filter controller 8 consists of a preliminary filter module, a waste cleaning module and a fine adjustment module. The preliminary filter module is electrically connected to the tilt filter assembly, the waste cleaning module is electrically connected to the unloading cylinder 41, the guide rail 21 and the turning motor 26, and the fine adjustment module is electrically connected to the purification recovery frame 2. The fine adjustment module is electrically connected to; A plurality of groups of oil agent regulating tanks 14 store acid and alkali liquids, demulsifiers and other chemical reagents, and the agent supply valve pipe 15 quantitatively adds chemical reagents. The oil agent filtered by the stainless steel wire mesh plate 3 flows from the one-way flow valve 13 to the purification recovery frame 2. The oil agent component measuring instrument 19 measures the additive content in the spinning oil agent after filtration. The oil agent component measuring instrument 19 measures the additive content in the spinning oil agent after filtration and transmits it to the filter controller 8. The measuring and analyzing supplement unit calculates the corresponding chemical reagents and dosages to be added. The pH value of the oil agent is adjusted by a chemical treatment method and different chemical additives are removed. Accurate and reliable data on the additive content help to accurately grasp the proportion of each component in the oil agent. The pH value is adjusted according to the specific properties of the oil agent, or a specific demulsifier is added to specifically destroy the stability of the emulsifier, and the emulsified state of the oil agent is quickly changed to achieve oil-water separation. The chemical treatment method can effectively remove specific additives in the oil agent, so that the recovered and filtered oil agent is similar to the crude oil agent in performance; The operation of the mixed flow motor 17 drives the neutralization adjustment frame 18 to rotate to fully mix the oil and chemical reagents. The plate activated carbon filter 16 is mainly used to remove the odor and color in the oil and improve the quality of the oil. Features: activated carbon particles are used as the filter medium, which has a large specific surface area and can absorb odor and pigment particles. The oil circulation pump 20 extracts the oil that meets the use requirements after filtration and recovery and supplies it to nylon spinning production.

[0032] The method for using the filtering device comprises the following steps: Step S1, after the spinning oil enters the filter chamber 1, the filter grid 30 performs preliminary filtering on it, and the filtered oil falls down and is filtered again by the preliminary filter plate 6, and the filtered oil is filtered by the filter grid 30 at the bottom end and falls to the bottom side of the filter chamber 1; Step S2, the guide rail 21 drives the particle turning seat to move to the inner side of the top of the filter bin 1, and then the turning motor 26 works to tilt and turn the particle impurity filter frame 5, and the particle impurities and sediments filtered out of the particle impurity filter frame 5 fall from the guide frame 12 through the opening; Step S3 , the spinning oil after preliminary filtration is further pressurized and filtered through the stainless steel wire mesh plate 3 and then flows from the one-way flow valve 13 into the purification recovery frame 2 .

[0033] In step S1, the following steps are also included: Step S11, according to the different nylon specifications of the spinning oil in the nylon production, the corresponding coarse and fine preliminary filter plate 6 is selected and inserted into the inclined slot 31, and the limiting arc block 40 limits it; In step S2, the following steps are also included: Step S21, filtered impurities of different particles are respectively deposited on the filter grid 30 and the surface of the preliminary filter plate 6; In step S3, the following steps are also included: Step S31, the oil composition analyzer 19 determines the additive content in the spinning oil after filtration, uses a chemical treatment method to adjust the pH value of the oil and removes different chemical additives.

[0034] Working principle: When using the device, the spinning oil first enters the filter chamber 1 and is initially filtered by the filter grid 30. The filtered oil falls and is filtered again by the preliminary filter plate 6. The filtered oil is filtered by the filter grid 30 at the bottom and falls to the bottom side of the filter chamber 1. According to the different nylon specifications of the spinning oil in nylon production, the preliminary filter plate 6 of corresponding coarseness is selected and inserted into the inclined slot 31, and the limit arc block 40 limits it. The guide rail 21 drives the particle turning seat to move to the inner side of the top of the filter bin 1, and then the turning motor 26 works to tilt and turn the particle impurity filter frame 5, and the particle impurities and sediments filtered out of the particle impurity filter frame 5 fall from the guide frame 12 through the opening, and the filtered impurities of different particles are respectively accumulated on the filter grid 30 and the surface of the preliminary filter plate 6; The spinning oil after preliminary filtration is further pressurized and filtered through the stainless steel wire mesh plate 3 and then flows from the one-way flow valve 13 to the purification recovery frame 2. The oil component measuring instrument 19 measures the additive content in the spinning oil after filtration, and uses a chemical treatment method to adjust the pH value of the oil and remove different chemical additives.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A filtering device for recovering nylon spinning oil, comprising a filtering chamber (1), a purification recovery frame (2) and a particle turning seat (4), characterized in that: A purification recovery frame (2) is installed on the outside of the filter bin (1), a stainless steel wire mesh plate (3) is installed on the inside of the filter bin (1), a particle turning seat (4) is provided at the outer end of the stainless steel wire mesh plate (3), and a particle impurity filter frame (5) is installed on the top of the particle turning seat (4) via a rotating shaft; An inclined filter assembly is arranged on the inner side of the particle impurity filter frame (5), and the inclined filter assembly comprises an inclined slot (31), a preliminary filter plate (6), a docking arc groove (37), an inner transverse plate (38), a docking handle bar (39) and a limit arc block (40). The inclined slot (31) is symmetrically arranged on the inner wall of the particle impurity filter frame (5), the preliminary filter plate (6) is movably mounted on the inner side of the inclined slot (31), a docking arc groove (37) is arranged on the bottom of the preliminary filter plate (6), the inner transverse plate (38) is mounted on the inner wall of the particle impurity filter frame (5), a docking handle bar (39) is mounted on the top of the inner transverse plate (38), and the limit arc block (40) is mounted on the telescopic end of the docking handle bar (39), and the limit arc block (40) cooperates with the docking arc groove (37).

2. A filtration device for recovering nylon spinning oil according to claim 1, characterized in that: An impurity discharge channel (35) is provided on the outer side of the particle impurity filter frame (5), an oil agent drop opening (32) is provided on the bottom wall of the particle impurity filter frame (5), and the oil agent drop opening (32) is connected to the impurity discharge channel (35), and drip openings (29) are provided through the top and bottom of the particle impurity filter frame (5), and a filter grille (30) is installed on the inner side of the drip opening (29).

3. A filtration device for recovering nylon spinning oil according to claim 2, characterized in that: A lifting port 1 (33) is formed through the top of the particle impurity filter frame (5), a lifting port 2 (34) is formed on the bottom wall of the particle impurity filter frame (5), a bottom opening limit groove (36) is formed on the bottom wall of the impurity discharge channel (35), a discharge frame (7) is mounted on the top of the particle impurity filter frame (5), a force unloading cylinder (41) is mounted on the top of the discharge frame (7), a particle falling plate (42) is connected to the output end of the force unloading cylinder (41), and the particle falling plate (42) passes through the inner sides of the lifting port 1 (33) and the lifting port 2 (34) in sequence and cooperates with the bottom opening limit groove (36).

4. A filtration device for recovering nylon spinning oil according to claim 1, characterized in that: A guide rail (21) is installed on the outer side of the stainless steel wire mesh plate (3), a reinforcement block (22) is installed on the output end of the guide rail (21), and the reinforcement block (22) is connected to the outer end of the particle turning seat (4).

5. The filtering device for recovering nylon spinning oil according to claim 1, characterized in that: The top of the particle turning seat (4) is provided with a turning guide groove (23), the inner side of which is provided with a lead screw (24), the outer side of which is sleeved with a hinged drive seat (25), and the outer end of the hinged drive seat (25) slides on the inner wall of the turning guide groove (23), the rear end of the particle turning seat (4) is provided with a turning motor (26), and the output end of the turning motor (26) is connected to the input end of the lead screw (24), the inner side of the hinged drive seat (25) is provided with a guide pillar (27), and the top end of the guide pillar (27) is hinged to the bottom of the particle impurity filter frame (5), and the top of the particle turning seat (4) is symmetrically penetrated with a rectangular drop opening (28).

6. A filtration device for recovering nylon spinning oil according to claim 1, characterized in that: An oil regulating tank (14) is installed at the top end of the outer side of the purification recovery frame (2), and an oil supply valve tube (15) is installed at the bottom end of the oil regulating tank (14). A mixed flow motor (17) is installed at the outer side of the purification recovery frame (2), and a neutralization adjustment frame (18) is installed at the output end of the mixed flow motor (17). A plate-type activated carbon filter (16) is installed on the inner wall of the purification recovery frame (2), and the plate-type activated carbon filter (16) is located above the neutralization adjustment frame (18). A one-way flow valve (13) is installed between the filter bin (1) and the purification recovery frame (2). An oil component measuring instrument (19) is installed on the inner wall of the purification recovery frame (2), and an oil circulation pump (20) is installed on the outer side of the purification recovery frame (2).

7. The filtering device for recovering nylon spinning oil according to claim 1, characterized in that: A cleaning rack (9) is installed on the top of the filter bin (1), a strong flushing nozzle (10) is installed on the output end of the cleaning rack (9), and a guide frame (12) is installed on the front end of the filter bin (1).

8. The filtering device for recovering nylon spinning oil according to claim 1, characterized in that: A filter controller (8) is installed on the outside of the filter bin (1), and the filter controller (8) is composed of a preliminary filter module, a waste cleaning module and a fine adjustment module. The preliminary filter module is electrically connected to the tilt filter assembly, the waste cleaning module is electrically connected to the unloading cylinder (41), the guide rail (21) and the material turning motor (26), the fine adjustment module is electrically connected to the purification recovery frame (2), and the fine adjustment module is electrically connected to the measurement and analysis supplement unit.

9. A method for using a nylon spinning oil recovery filtering device, applicable to a nylon spinning oil recovery filtering device according to any one of claims 1 to 8, characterized in that: The method for using the filtering device comprises the following steps: Step S1, after the spinning oil enters the filter chamber (1), the filter grid (30) performs preliminary filtering on it, the filtered oil falls down and is filtered again by the preliminary filter plate (6), and the filtered oil is filtered by the filter grid (30) at the bottom end and falls to the bottom side of the filter chamber (1); Step S2, the guide rail (21) drives the particle turning seat to move to the inner side of the top end of the filter bin (1), and then the turning motor (26) operates to tilt and turn the particle impurity filter frame (5), so that the particle impurities and sediment filtered out of the particle impurity filter frame (5) fall from the guide frame (12) through the opening; Step S3: the spinning oil after preliminary filtration is further filtered under pressure through the stainless steel wire mesh plate (3) and then flows from the one-way flow valve (13) into the purification recovery frame (2).

10. The method for using the filtration device for recovering nylon spinning oil according to claim 9, characterized in that: In the step S1, the following steps are also included: Step S11, selecting a preliminary filter plate (6) of corresponding thickness according to different nylon specifications in nylon production using spinning oil and inserting it into the inclined slot (31), and limiting it with a limiting arc block (40); In the step S2, the following steps are also included: Step S21, filtered impurities of different particles are respectively deposited on the surface of the filter grid (30) and the preliminary filter plate (6); In step S3, the following steps are also included: Step S31, the oil composition measuring instrument (19) measures the additive content in the spinning oil after filtration, uses a chemical treatment method to adjust the pH value of the oil and removes different chemical additives.

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