A process and system for efficiently recycling NMP waste liquid

Abstract

The invention relates to the technical field of NMP waste liquid recovery, and in particular to a process and system for efficiently recovering and recycling NMP waste liquid, comprising a filter box, a discharge pipe, a discharge valve and a barrier filter plate, and also comprising an adsorption component; the adsorption component comprises a mounting frame, an alternating slide, a rotating filter membrane frame, a cleaning box, a collecting frame, a sliding component, a flipping component, a blowing component and a pressure stabilizing component; the mounting frame is fixedly connected to the filter box, two alternating slides are slidably mounted on the mounting frame, the rotating filter membrane frames are rotatably mounted on the two alternating slides, the cleaning box is fixedly connected to the filter box, the collecting frame is connected to the cleaning box, the sliding component is connected to the alternating slide, the flipping component is connected to the rotating filter membrane frame, the blowing component is connected to the cleaning box, and the pressure stabilizing component is connected to the filter box, so that impurities adsorbed on the surface of the filter membrane can be automatically cleaned by the provided components, so that the NMP waste liquid is more stable when filtering and removing impurities.

Description

Technical Field

[0001] The invention relates to the technical field of NMP waste liquid recovery, and in particular to a process and a system for efficiently recovering and recycling NMP waste liquid. Background Art

[0002] The chemical name of NMP is N-methylpyrrolidone (NMP). N-methylpyrrolidone (NMP) is a high-boiling point, environmentally friendly and excellent solvent with low viscosity, good chemical and thermal stability, high polarity, low volatility, and infinite miscibility with water and many organic solvents. The market application areas of N-methylpyrrolidone are mainly concentrated in lithium batteries, circuit boards, insulation materials, petrochemicals, medicines, pesticides, cleaning, polymers and other industries.

[0003] The existing NMP waste liquid recycling process generally uses filtration and distillation to purify the NMP waste liquid, thereby obtaining a high-purity NMP solution for subsequent recycling.

[0004] However, when the above method is used, when NMP waste liquid is filtered, since there are solid impurities of different sizes in the waste liquid, a filter plate is generally used to separate the solid impurities in the waste liquid. After separation, the impurities will adhere to the surface of the filter plate and block the filter holes provided on the filter plate. In order to prevent impurities from blocking the filter holes, the existing filtering device usually sets a corresponding cleaning structure or adopts an inclined filter plate setting to allow the impurities to be concentrated on the corresponding side of the plate, and then recovered and discharged. For some filter plates, the cleaning structure can indeed remove the impurities adsorbed on the surface. However, when NMP waste liquid is filtered, since there are many fine particles in the waste liquid, most of these impurities need to be blocked by a filter membrane or a filter screen with extremely small filter holes. When these small filter hole filtering mechanisms are used to discharge impurities, they cannot be effectively cleaned by the cleaning structure, and even cleaning by a part of the cleaning structure will cause damage to the filter mechanism such as the filter membrane, making it impossible to effectively clean the impurities adsorbed on the surface of the filter membrane in the working state during actual operation, thereby affecting the permeation efficiency of the overall solution. Summary of the invention

[0005] The object of the present invention is to provide a highly efficient recycling process and system for NMP waste liquid, which can automatically clean the impurities adsorbed on the surface of the filter membrane through the provided components, so that the NMP waste liquid is more stable when filtering and removing impurities.

[0006] To achieve the above-mentioned object, the present invention provides a system for efficiently recycling and utilizing NMP waste liquid, comprising a filter box, a discharge pipe, a discharge valve and a barrier filter plate, wherein the discharge pipe is installed at the bottom of the filter box, the discharge valve is installed on the discharge pipe, the barrier filter plate is installed in the filter box, and further comprises an adsorption component;

[0007] The adsorption assembly includes a mounting frame, an alternating slide, a rotating filter membrane frame, a cleaning box, a collecting frame, a sliding component, a flipping component, a blowing component and a pressure stabilizing component; the mounting frame is fixedly connected to the filter box and is located in the filter box, two alternating slides are slidably mounted on the mounting frame, and the rotating filter membrane frame is rotatably mounted on the two alternating slides, the cleaning box is fixedly connected to the filter box and is located on one side of the filter box, the collecting frame is connected to the cleaning box and is located on one side of the cleaning box, the sliding component is connected to the alternating slide, the flipping component is connected to the rotating filter membrane frame, the blowing component is connected to the cleaning box, and the pressure stabilizing component is connected to the filter box.

[0008] Wherein, the sliding component includes a fixed rack, a driving gear shaft, a driving motor and a control component, and the fixed rack is fixedly installed on the two alternating slides; the two driving gear shafts are respectively meshed with the two fixed racks, and the two driving gear shafts are rotatably installed on both sides of the mounting frame; the output shafts of the two driving motors are respectively connected with the two driving gear shafts, and the two driving motors are fixedly installed on both sides of the filter box, and the control component is connected to the alternating slide.

[0009] Wherein, the flipping component includes a flipping shaft, a sleeve gear ring, a fixed gear ring, a connecting sleeve, an extrusion spring, a matching component and a rotating component, and the flipping shaft is fixed on the sides of the two rotating filter membrane frames; the sleeve gear ring is fixedly mounted on the two flipping shafts; the two fixed gear rings are respectively fixedly mounted on one side of the two alternating slides, and are located on the side of the corresponding alternating slides close to the sleeve gear ring; the two connecting sleeves are respectively slidably mounted on one side of the two alternating slides, and are respectively sleeved on the corresponding fixed gear rings; the two sides of the extrusion spring are respectively connected to the connecting sleeve and the alternating slide; the matching component is connected to the cleaning box; the rotating component is connected to the cleaning box.

[0010] Among them, the control component includes a contact plate and a sensing module, and the two contact plates are fixedly mounted on the two alternating slides respectively; the two sensing modules are electrically connected to the two driving motors respectively, and are fixedly mounted on one side of the filter box and are located close to the side corresponding to the contact plate.

[0011] Wherein, the mating parts include an extrusion sleeve and a button control panel, the two extrusion sleeves are rotatably mounted on one side of the cleaning box and are located on the side of the cleaning box close to the corresponding flip axis; the two button control panels are fixedly mounted on the two extrusion sleeves.

[0012] Among them, the rotating component includes a rotating gear ring, a rotating gear shaft and a rotating motor, the two rotating gear rings are respectively fixedly mounted on the two extrusion rotating sleeves; the rotating gear shaft is meshed with the two rotating gear rings at the same time and is rotatably installed on one side of the cleaning box; the output shaft of the rotating motor is connected to the rotating gear shaft, and the rotating motor is electrically connected to the two button control panels at the same time and is fixedly installed on one side of the cleaning box.

[0013] Wherein, the blowing component includes a guide rod, a guide frame, a nozzle, a movable screw, a movable motor and an output component, the guide rod is fixedly connected to the cleaning box and is located in the cleaning box; the guide frame is slidably connected to the guide rod and is located in the cleaning box; the nozzle is fixedly connected to the guide frame and is located on a side of the guide frame close to the alternating slide; the movable screw is threadedly connected to the guide frame and is rotatably installed on one side of the cleaning box; the output shaft of the movable motor is connected to the movable screw, and the movable motor is fixedly installed on one side of the cleaning box; the output component is connected to the cleaning box.

[0014] Wherein, the output component includes an air pump, a transmission duct, a connecting duct and a baffle, the air pump is connected to the cleaning box and is located on one side of the cleaning box; the transmission duct is connected to the air pump and is located on one side of the air pump; one end of the connecting duct is connected to the transmission duct, and the other end of the connecting duct is connected to the conduction frame; the baffle is fixedly installed in the cleaning box.

[0015] Wherein, the pressure stabilizing component includes a one-way feed channel, a pressure gauge, a controller, a charging channel and a control valve, the one-way feed channel is connected to the filter box and is located on the top of the filter box; the pressure gauge is connected to the filter box and is located on one side of the filter box; the controller is electrically connected to the pressure gauge and is installed on one side of the filter box; the charging channel is connected to the transmission duct and is installed on one side of the filter box; the control valve is electrically connected to the controller and is installed on the charging channel.

[0016] The invention discloses a highly efficient recycling process and system for NMP waste liquid. The waste liquid introduced is initially filtered by the barrier filter plate provided in the filter box. The filtered waste liquid is then filtered by the rotating filter membrane frame on the alternating slide. Finally, the filtered waste liquid is discharged through the discharge pipe. When the alternating slide and the rotating filter membrane frame are filtering, the two sets of the alternating slide and the rotating filter membrane frame work alternately. When the alternating slide and the rotating filter membrane frame provided at the top are filtering, the alternating slide and the rotating filter membrane frame provided at the bottom are The filter membrane rack will be placed in the cleaning box for cleaning. When the alternating slide and the rotating filter membrane rack below move to the inside of the filter box under the cooperation of the corresponding driving motor, the driving gear shaft and the fixed gear stage, the contact plate arranged on the alternating slide below drives the driving motor used to drive the upper alternating slide to move by a specified program through the cooperation with the sensing module, so that the upper alternating slide will move into the cleaning box, and then cooperate with the extrusion rotating sleeve through the flip shaft provided on the side of the alternating slide. During the cooperation process, the extrusion rotating sleeve will press the The connecting sleeve is squeezed, and the flip shaft can also complete the corresponding control of the rotating motor by cooperating with the button control panel, so that the flip shaft with the fixed sleeve provided with the sleeve gear ring can rotate under the cooperation of the rotating motor and the corresponding gear group, thereby driving the rotating filter membrane frame to flip, so as to dump the impurities attached to the surface of the corresponding rotating filter membrane frame, and then the rotating motor cooperates with the corresponding gear group to drive the corresponding rotating filter membrane frame to complete the reset, and finally the upper alternating slide is moved back into the filter box, and when the upper alternating slide is reset, Since the corresponding connecting sleeve will be reset under the action of the extrusion spring, the turned-over rotating filter membrane frame maintains a stable position under the cooperation of the connecting sleeve and the fixed gear ring and the sleeve gear ring to avoid self-rotation during the movement. When the upper alternating slide is completely moved into the filter box, due to the cooperation of the contact plate provided on the upper alternating slide and the corresponding sensing module, the lower alternating slide will perform the same cleaning process as the upper alternating slide and then reset. In this way, the two alternating slides are alternately cycled to ensure their own water permeability efficiency.

[0017] The impurities adsorbed on the surface of the filter membrane can be automatically cleaned by the provided components, so that the NMP waste liquid is more stable during filtering and impurity removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 It is a schematic diagram of the overall structure of the NMP waste liquid efficient recovery and recycling system of the first embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the installation structure of the barrier filter plate according to the first embodiment of the present invention.

[0021] Figure 3 2 is a schematic diagram of the installation structure of the alternating slide according to the first embodiment of the present invention.

[0022] Figure 4 The first embodiment of the present invention Figure 3 Enlarged view of point A.

[0023] Figure 5 It is a schematic diagram of the installation structure of the rotating gear shaft according to the first embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the cross-section structure of the extrusion rotary sleeve of the first embodiment of the present invention.

[0025] Figure 7 The first embodiment of the present invention Figure 6 Enlarged view of point B.

[0026] Figure 8 It is a schematic diagram of the overall structure of the NMP waste liquid efficient recovery and recycling system of the second embodiment of the present invention.

[0027] Fig. 9 It is a schematic diagram of the installation structure of the moving screw rod according to the second embodiment of the present invention.

[0028] Fig.10 It is a schematic diagram of the overall structure of the NMP waste liquid efficient recovery and recycling system of the third embodiment of the present invention.

[0029] Fig.11 The invention discloses a flow chart of a process for efficiently recovering and recycling NMP waste liquid.

[0030] In the figure: 101-filter box, 102-discharge pipe, 103-discharge valve, 104-barrier filter plate, 105-mounting frame, 106-alternating slide, 107-rotating filter membrane frame, 108-cleaning box, 109-collection frame, 110-fixed rack, 111-driven gear shaft, 112-driven motor, 113-turning shaft, 114-set gear ring, 115-fixed gear ring, 116-connecting sleeve, 117-extrusion spring, 118-contact plate, 119-induction module Block, 120-extrusion rotating sleeve, 121-button control panel, 122-rotating gear ring, 123-rotating gear shaft, 124-rotating motor, 201-guide rod, 202-conducting frame, 203-sprinkler, 204-moving screw, 205-moving motor, 206-air pump, 207-transmission conduit, 208-connecting conduit, 209-baffle, 301-one-way feeding channel, 302-pressure gauge, 303-controller, 304-charging channel, 305-control valve. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0032] The first embodiment of the present application is:

[0033] See also Figures 1 to 7 ,in Figure 1 This is a schematic diagram of the overall structure of the NMP waste liquid efficient recycling system. Figure 2 1 is a schematic diagram of the installation structure of the barrier filter plate 104. Figure 3 is a schematic diagram of the installation structure of the alternating slide 106, Figure 4 yes Figure 3 A magnified image of Figure 5 1 is a schematic diagram of the installation structure of the rotating gear shaft 123. Figure 6 is a schematic diagram of the structure of the extrusion rotating sleeve 120 cut away. Figure 7 yes Figure 6 Enlarged view of point B.

[0034] The invention provides a system for efficiently recycling and utilizing NMP waste liquid, comprising a filter box 101, a discharge pipe 102, a discharge valve 103, a barrier filter plate 104 and an adsorption component, wherein the adsorption component comprises a mounting frame 105, an alternating slide frame 106, a rotating filter membrane frame 107, a cleaning box 108, a collecting frame 109, a sliding component, a flipping component, a blowing component and a pressure stabilizing component, wherein the sliding component comprises a fixed rack 110, a driving gear shaft 111, a driving motor 112 and a control component, wherein the flipping component comprises a flipping shaft 113, a sleeve gear ring 114, a fixed gear ring 115, a connecting sleeve 116, an extrusion spring 117, a matching component and a rotating component, wherein the controlling component comprises a contact plate 118 and a sensing module 119, wherein the matching component comprises an extrusion rotating sleeve 120 and a button control panel 121, wherein the rotating component comprises a rotating gear ring 122, a rotating gear shaft 123 and a rotating motor 124, and the above-mentioned scheme solves the problem that when filtering NMP waste liquid in the prior art, the waste liquid contains Solid impurities of different sizes, so filter plates are generally used to separate solid impurities in waste liquid. After separation, the impurities will adhere to the surface of the filter plate and block the filter holes of the filter plate. In order to avoid impurities blocking the filter holes, existing filtering devices usually set corresponding cleaning structures or use inclined filter plates to allow impurities to be concentrated on the corresponding side of the plate, and then recovered and discharged. For some filter plates, the cleaning structure can indeed remove impurities adsorbed on the surface. However, when filtering NMP waste liquid, since there will be many fine particles in the waste liquid, most of these impurities need to be blocked by filter membranes or filter screens with extremely small filter holes. When these small filter hole filtering mechanisms are used to discharge impurities, they cannot be effectively cleaned by the cleaning structure, and even cleaning by partial cleaning structures will cause damage to filtering mechanisms such as filter membranes, making it impossible to effectively clean impurities adsorbed on the surface of the filter membrane in the working state during actual operation, thereby affecting the permeation efficiency of the overall solution.

[0035] In this embodiment, the discharge pipe 102 is installed at the bottom of the filter box 101, the discharge valve 103 is installed on the discharge pipe 102, the barrier filter plate 104 is installed in the filter box 101, and the barrier filter plate 104 provided on the top of the filter box 101 is inclined. Since the existing technology for cleaning impurities attached to the surface of the barrier filter plate 104 is very mature, there is no mechanism for cleaning the surface of the barrier filter plate 104 in this scheme. By arranging the barrier filter plate 104 at an angle, the larger solid impurities on the surface of the barrier filter plate 104 that block the discharge of materials can be concentrated to the lowest end of the barrier filter plate 104, and then the user can open a box door or other mechanism at the lowest end of the surface of the barrier filter plate 104 to allow the impurities to be discharged smoothly. Since there are many fine impurities attached to the waste liquid when filtering the NMP waste liquid, the filtering burden of the barrier filter plate 104 is not large.

[0036] Wherein, the mounting frame 105 is fixedly connected to the filter box 101 and is located in the filter box 101, the two alternating slides 106 are slidably mounted on the mounting frame 105, and the rotating filter membrane frame 107 is rotatably mounted on the two alternating slides 106, the cleaning box 108 is fixedly connected to the filter box 101 and is located on one side of the filter box 101, the collecting frame 109 is connected to the cleaning box 108 and is located on one side of the cleaning box 108, the sliding member is connected to the alternating slides 106, the flipping member is connected to the rotating filter membrane frame 107, the blowing member is connected to the cleaning box 108, and the pressure stabilizing member is connected to the filter box 101, the mounting frame 105 is fixedly arranged in the filter box 101, and two alternating slides 106 are slidably mounted on the mounting frame 105, and the rotating filter membrane frame 107 is rotatably mounted on each of the alternating slides 106. The rotating filter membrane rack 107 provided on it further filters the waste liquid flowing down from the barrier filter plate 104. The filter membrane pore size provided on the rotating filter membrane rack 107 is small, which can adsorb small particle impurities in the waste liquid, so that the subsequent filtering of the waste liquid is more efficient. The cleaning box 108 is fixedly arranged on the side of the filter box 101, and an insertion groove for installing the collection frame 109 is provided at the bottom of the cleaning box 108, so that the collection frame 109 can be placed in the cleaning box 108. The two alternating slides 106 and the corresponding two rotating filter membrane racks 107 are used alternately in actual work. When one of the alternating slides 106 and the rotating filter membrane rack 107 is filtering, the other alternating slide 106 and the rotating filter membrane rack 107 are cleaned in the cleaning box 108. In this way, it is ensured that when the impurities on the rotating filter membrane rack 107 are cleaned, the waste liquid filtration in the filter box 101 can be carried out normally.

[0037] Secondly, the fixed racks 110 are fixedly mounted on the two alternating slides 106; the two driving gear shafts 111 are respectively meshed with the two fixed racks 110, and the two driving gear shafts 111 are rotatably mounted on both sides of the mounting frame 105; the output shafts of the two driving motors 112 are respectively connected with the two driving gear shafts 111, and the two driving motors 112 are fixedly mounted on both sides of the filter box 101; the control component is connected to the alternating slides 106, and the two contact plates 118 are respectively fixedly mounted on the two alternating slides 106;The two sensing modules 119 are electrically connected to the two driving motors 112 respectively, and are fixedly installed on one side of the filter box 101 and are located on the side close to the corresponding contact plate 118. The fixed rack 110 is fixedly installed on the side of each of the alternating slides 106. Each of the fixed racks 110 is meshed with the corresponding end gear of the driving gear shaft 111. Each of the driving gear shafts 111 is fixed to the output shaft of the driving motor 112 fixedly installed on the outside of the filter box 101, so that the corresponding driving motor 112 can drive the corresponding driving gear shaft 111 to rotate, and then the corresponding driving gear shaft 111 is driven by the corresponding driving motor 112 to rotate. 11 cooperates with the corresponding fixed rack 110 to complete the driving of the corresponding alternating slide 106. The contact plate 118 is fixed on the outside of the two alternating slides 106. The side of the contact plate 118 is provided with a corresponding matching contact. The two sensing modules 119 are respectively embedded in the side of the filter box 101 that cooperates with the corresponding contact plate 118. The two sensing modules 119 are respectively connected to the two driving motors 112 through corresponding circuits. It should be noted that the sensing module 119 arranged at the top is electrically connected to the driving motor 112 that controls the movement of the alternating slide 106 below, while the sensing module 119 arranged at the bottom is electrically connected to the driving motor 112 that controls the movement of the alternating slide 106 below. It is electrically connected to the driving motor 112 that controls the movement of the upper alternating slide 106. When the contact plate 118 provided on the upper alternating slide 106 contacts and cooperates with the upper sensing module 119 due to the driving of the upper alternating slide 106, the upper sensing module 119 will start a preset control program to control the specified driving motor 112, so that the driving motor 112 drives the lower alternating slide 106 to slide back and forth through the provided driving mechanism. When the alternating slide 106 slides back and forth, there will be a long gap after the alternating slide 106 moves to the farthest position, and the user can use this gap It is set according to the actual operation situation. The set interval is the cleaning time of the rotating filter membrane frame 107 on the alternating slide 106. When the lower alternating slide 106 moves back so that the contact plate 118 arranged on the lower alternating slide 106 contacts and cooperates with the sensing module 119 arranged below, the sensing module 119 below will start the preset control program to drive the driving motor 112 used to control the movement of the upper alternating slide 106. In this way, the alternating cycle ensures that the rotating filter membrane frames 107 on the two alternating slides 106 can filter and clean alternately, thereby keeping the water permeability of the entire filtration stable. ;

[0038] At the same time, the flip shaft 113 is fixed on the side of the two rotating filter membrane frames 107; the sleeve tooth ring 114 is fixedly sleeved on the two flip shafts 113; the two fixed tooth rings 115 are respectively fixedly installed on one side of the two alternating slides 106, and are located on the side of the corresponding alternating slides 106 close to the sleeve tooth ring 114; the two connecting sleeves 116 are respectively slidably installed on one side of the two alternating slides 106, and are respectively sleeved on the corresponding fixed tooth rings 115; the two sides of the extrusion spring 117 are respectively connected to the connecting sleeve 116 and the alternating slide 106; the matching component is connected to the cleaning box 108; the rotating component is connected to the cleaning box 108 The two extrusion rotating sleeves 120 are respectively rotatably mounted on one side of the cleaning box 108, and are located on the side of the cleaning box 108 close to the corresponding flip axis 113; the two button control panels 121 are respectively fixedly mounted on the two extrusion rotating sleeves 120, and the two rotating gear rings 122 are respectively fixedly sleeved on the two extrusion rotating sleeves 120; the rotating gear shaft 123 is simultaneously meshed with the two rotating gear rings 122, and is rotatably mounted on one side of the cleaning box 108; the output shaft of the rotating motor 124 is connected to the rotating gear shaft 123, and the rotating motor 124 is simultaneously electrically connected to the two button control panels 121, and is fixedly mounted on one side of the cleaning box 108, A corresponding cross boss is provided at the end of the rotating shaft 113, and the sleeve gear ring 114 is fixedly sleeved on each of the flip shafts 113. At the same time, each of the alternating slides 106 is fixed with the fixed gear ring 115 at a position close to the sleeve gear. The outer teeth of the sleeve gear ring 114 and the fixed gear ring 115 are of the same size and shape. The connecting sleeve 116 is slidably installed on the outer side of the alternating slide 106 through four cylindrical platforms provided at the bottom. At the same time, the connecting sleeve 116 is also provided with tooth grooves matching the outer teeth of the sleeve gear ring 114 and the fixed gear ring 115. A plurality of extrusion springs 117 are provided between the connecting sleeve 116 and the side of the alternating slide 106. 7, the connecting sleeve 116 can sleeve the sleeve gear ring 114 and the fixed gear ring 115 together, so that the flip shaft 113 and the rotating filter membrane frame 107 cannot rotate on the alternating slide 106, and the two groups of the extrusion sleeves 120 and the button control panel 121 are arranged on the inner wall of the cleaning box 108. The extrusion sleeve 120 is provided with a cross groove for cooperating with the cross boss at the end of the flip shaft 113. At the same time, the side end of the extrusion sleeve 120 is also provided with an extrusion boss for extruding the connecting sleeve 116. When the alternating slide 106 drives the flip shaft 113 and the corresponding mechanism to move toward the inner wall of the cleaning box 108,The cross boss at the end of the flip shaft 113 cooperates with the cross groove of the extrusion sleeve 120, and then the extrusion sleeve 120 pushes the connecting sleeve 116 so that the connecting sleeve 116 is disengaged from the cooperation with the sleeve gear ring 114, so that the connecting sleeve 116 is completely sleeved on the fixed gear ring 115, and then the rotation of the extrusion sleeve 120 drives the flip shaft 113 and the rotating filter membrane frame 107 to rotate, and the button control panel 121 arranged on the extrusion sleeve 120 is connected to the rotating motor 124 through a corresponding control circuit. When the flip shaft 113 cooperates with the extrusion sleeve 120, the cross boss at the end of the flip shaft 113 squeezes the start switch on the button control panel 121, and the corresponding alternating slide 106 is turned. After the movement is completed, the cross boss at the end of the flip shaft 113 will complete the pressing of the button on the button control panel 121, thereby controlling the rotating motor 124 to work. The output shaft of the rotating motor 124 is fixed to the rotating gear shaft 123, and the rotating gear shaft 123 is meshed with the rotating gear ring 122 sleeved on the two extrusion rotating sleeves 120, so that when the rotating gear shaft 123 rotates, the rotating gear ring 122 drives the extrusion rotating sleeve 120 to rotate. Since each rotation is completed after flipping and resetting, the upper and lower extrusion rotating sleeves 120 can ensure the consistency of the cooperation with the flip shafts 113 at the ends of the two alternating slides 106. At the same time, the same rotating motor 124 can be controlled by the upper and lower button control panels 121.

[0039] When the NMP waste liquid efficient recycling and utilization system of the present embodiment is in use, the introduced waste liquid is initially filtered by the barrier filter plate 104 provided in the filter box 101, and then the filtered waste liquid is filtered again by the rotating filter membrane rack 107 on the alternating slide 106, and finally the filtered waste liquid is discharged through the discharge pipe 102. When the alternating slide 106 and the rotating filter membrane rack 107 are filtering, the two sets of the alternating slides 106 and the rotating filter membrane rack 107 will work alternately. When the alternating slide 106 and the rotating filter membrane rack 107 arranged at the top are filtering, the alternating slide 106 and the rotating filter membrane rack 107 arranged at the bottom are The rack 107 will be in the cleaning box 108 for cleaning. When the alternating slide 106 below and the rotating filter membrane rack 107 move to the inside of the filter box 101 under the cooperation of the corresponding driving motor 112, the driving gear shaft 111 and the fixed gear stage, the contact plate 118 arranged on the alternating slide 106 below drives the driving motor 112 used to drive the upper alternating slide 106 to move through the cooperation with the sensing module 119 to perform a specified program, so that the upper alternating slide 106 will move into the cleaning box 108, and then cooperate with the extrusion rotating sleeve 120 through the flip shaft 113 provided on the side of the alternating slide 106. During the cooperation process, the extrusion rotating sleeve 120 will squeeze the connecting sleeve 116, and the flip shaft 113 can also complete the corresponding control of the rotating motor 124 by cooperating with the button control panel 121, so that the flip shaft 113 with the sleeve gear ring 114 fixedly sleeved can rotate under the cooperation of the rotating motor 124 and the corresponding gear set, thereby driving the rotating filter membrane frame 107 to flip, so as to dump the impurities attached to the surface of the corresponding rotating filter membrane frame 107, and then the rotating filter membrane frame 107 is driven by the rotating motor 124 to cooperate with the corresponding gear set to complete the reset, and finally the upper alternating slide 106 is moved back into the filter box. 101, when the upper alternating slide 106 is reset, the corresponding connecting sleeve 116 will be reset under the action of the extrusion spring 117, so the turned over rotating filter membrane frame 107 maintains a stable position under the cooperation of the connecting sleeve 116 and the fixed gear ring 115 and the sleeve gear ring 114 to avoid self-rotation during the movement. When the upper alternating slide 106 is completely moved into the filter box 101, due to the cooperation of the contact plate 118 provided on the upper alternating slide 106 and the corresponding sensing module 119, the lower alternating slide 106 will undergo the same cleaning process as the above-mentioned upper alternating slide 106 and then reset.The two alternating slides 106 are circulated alternately in this way to ensure their own water permeability efficiency;

[0040] The impurities adsorbed on the surface of the filter membrane can be automatically cleaned by the provided components, so that the NMP waste liquid is more stable during filtering and impurity removal.

[0041] Second embodiment:

[0042] See also Figure 8 and Fig. 9 , Figure 8 This is a schematic diagram of the overall structure of the NMP waste liquid efficient recycling system of the second embodiment, Fig. 9 This is a schematic diagram of the installation structure of the movable screw 204. The blowing component provided by the present invention includes a guide rod 201, a guide frame 202, a nozzle 203, a movable screw 204, a movable motor 205 and an output component. The output component includes an air pump 206, a transmission duct 207, a connecting duct 208 and a baffle 209.

[0043] The guide rod 201 is fixedly connected to the cleaning box 108 and is located in the cleaning box 108; the guide frame 202 is slidably connected to the guide rod 201 and is located in the cleaning box 108; the nozzle 203 is fixedly connected to the guide frame 202 and is located on a side of the guide frame 202 close to the alternating slide 106; the moving screw 204 is threadedly connected to the guide frame 202 and is rotatably mounted on one side of the cleaning box 108; the output shaft of the moving motor 205 is connected to the moving screw 204, and the moving motor 205 is fixedly mounted on the cleaning box 108. one side; the output component is connected to the cleaning box 108, the air pump 206 is connected to the cleaning box 108 and is located on one side of the cleaning box 108; the transmission conduit 207 is connected to the air pump 206 and is located on one side of the air pump 206; one end of the connecting conduit 208 is connected to the transmission conduit 207, and the other end of the connecting conduit 208 is connected to the guide frame 202; the baffle 209 is fixedly installed in the cleaning box 108, and the guide frame 202 cooperates with the guide rod 201 fixedly installed in the cleaning box 108 through the guide groove provided on the side, A plurality of nozzles 203 are arranged at the bottom of the guide frame 202, and a corresponding air guide channel is arranged inside the guide frame 202, through which the gas can be transmitted to the nozzle 203, and then the gas is ejected through the nozzle 203, the guide frame 202 is connected with the gas outlet interface of the air pump 206 through the connecting conduit 208 and the transmission conduit 207, the connecting conduit 208 is a hose, and two baffles 209 are installed at the position where the connecting conduit 208 is arranged, and the two baffles 209 can prevent the guide frame 202 from being in the cleaning box 10 8, the connecting duct 208 moves into the specified range, and the connecting duct 208 placed inside the cleaning box 108 interferes with and affects the flipping of the rotating filter membrane frame 107. The corresponding side of the guide frame 202 is also provided with a threaded hole for cooperating with the moving screw 204. The moving screw 204 is fixed to the output shaft of the moving motor 205, so that when the moving motor 205 drives the moving screw 204, the moving screw 204 can drive the guide frame 202 to move, thereby flushing the rotating filter membrane frame 107 through airflow.

[0044] When using the NMP waste liquid efficient recycling and utilization system of the present embodiment, the air pump 206 can be used to introduce the airflow from the transmission conduit 207 and the connecting conduit 208 into the guide frame 202, and then the gas is ejected through the nozzle 203 through the guide frame 202, and then the rotating filter membrane frame 107 after flipping is flushed by the ejected airflow, so that the impurities attached to the surface of the rotating filter membrane frame 107 can be cleaned more thoroughly and quickly. During the cleaning process, the guide frame 202 can also be moved under the drive of the moving motor 205 and the moving screw 204, so as to ensure that the rotating filter membrane frame 107 can be cleaned more completely, which greatly enhances the practicality of the entire device.

[0045] Third embodiment:

[0046] See also Fig.10 , Fig.10 This is a schematic diagram of the overall structure of the NMP waste liquid efficient recovery and recycling system of the third embodiment. The pressure stabilizing component provided by the present invention includes a one-way feed channel 301, a pressure gauge 302, a controller 303, a charging channel 304 and a control valve 305.

[0047] The one-way feed channel 301 is connected to the filter box 101 and is located at the top of the filter box 101; the pressure gauge 302 is connected to the filter box 101 and is located at one side of the filter box 101; the controller 303 is electrically connected to the pressure gauge 302 and is installed at one side of the filter box 101; the charging channel 304 is connected to the transmission conduit 207 and is installed at one side of the filter box 101; the control valve 305 is electrically connected to the controller 303 and is installed at the The one-way feed channel 301 is arranged on the top of the filter box 101, and the one-way feed channel 301 is composed of a one-way valve and a feed pipe to prevent the gas inside the filter box 101 from flowing back. The pressure gauge 302 is arranged on the filter box 101, and the controller 303 is connected to the pressure gauge 302 through a corresponding circuit. At the same time, the control valve 305 is connected to the controller 303 through a corresponding circuit. The control valve 305 is arranged on the charging channel 304. The charging channel 304 connects the transmission conduit 207 with the filter box 101, so that the user can monitor the air pressure at the top of the filter box 101 through the provided barometer 302, and then charge the gas inside the transmission conduit 207 into the filter box 101 through the charging channel 304, thereby pressurizing the top of the filter box 101, so as to speed up the passing efficiency of the liquid from the filter membrane on the rotating filter membrane frame 107, and when the barometer 302 detects a drop in air pressure, the pressure at the top of the filter box 101 is increased. When the controller 303 receives the corresponding information transmitted by the pressure gauge 302, it can control the control valve 305, so that the charging channel 304 introduces the gas inside the transmission conduit 207 into the filter box 101. When the pressure gauge 302 detects that the internal air pressure of the filter box 101 is within the set range, the control valve 305 will cut off the middle end of the charging channel 304, so that the filter box 101 is no longer inflated, thereby ensuring the stability of the internal air pressure of the filter box 101.

[0048] When using the NMP waste liquid efficient recycling and utilization system of the present embodiment, the airflow derived from the transmission conduit 207 can be introduced into the filter box 101 through the charging channel 304 and the control valve 305, so as to pressurize the top of the filter box 101. During the pressurization of the filter box 101, the one-way feed channel 301 can be used to prevent gas from flowing out when the waste liquid is not introduced, and then the waste liquid can be filtered more quickly through the rotating filter membrane frame 107 by pressurizing the top space of the filter box 101. At the same time, the air pressure at the top of the filter box 101 is monitored in cooperation with the barometer 302 and the controller 303, and then the control valve 305 is controlled according to the monitoring feedback data to ensure the stability of the air pressure inside the filter box 101, thereby greatly enhancing the practicality of the entire device.

[0049] See also Fig.11 A process for efficiently recycling and utilizing NMP waste liquid, using the system for efficiently recycling and utilizing NMP waste liquid, is characterized in that it comprises the following steps:

[0050] S1: The introduced NMP waste liquid is filtered for primary impurity removal through the barrier filter plate 104 provided inside the filter box 101, and then the waste liquid is filtered for secondary adsorption through the alternating slide 106 and the rotating filter membrane frame 107 installed on the mounting frame 105 inside the filter box 101;

[0051] S2: After one set of the alternating slides 106 and the rotating filter membrane rack 107 completes filtering, the sliding member will drive the corresponding set of the alternating slides 106 and the rotating filter membrane rack 107 to move out of the filter box 101, and at this time, the filter box 101 is filtered by another set of the alternating slides 106 and the rotating filter membrane rack 107;

[0052] S3: The removed alternating slide 106 and the rotating filter membrane rack 107 are turned over and cleaned under the action of the turning component and the blowing component to complete the removal of impurities attached to the surface. After the cleaning is completed, they are rotated and reset, and then re-enter the filter box 101 through the sliding component. The alternating slide 106 and the rotating filter membrane rack 107 that have undergone filtering work are removed and cleaned accordingly after the cleaning of the alternating slide 106 and the rotating filter membrane rack 107 are completely moved into the filter box 101. In this way, the rotating filter membrane rack 107 after filtration is cleaned accordingly to ensure the stability of the waste liquid filtration efficiency inside the filter box 101.

[0053] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A system for efficiently recycling and utilizing NMP waste liquid, comprising a filter box, a discharge pipe, a discharge valve and a barrier filter plate, wherein the discharge pipe is installed at the bottom of the filter box, the discharge valve is installed on the discharge pipe, and the barrier filter plate is installed in the filter box, characterized in that: Also included is an adsorption assembly; The adsorption assembly includes a mounting frame, an alternating slide, a rotating filter membrane frame, a cleaning box, a collecting frame, a sliding component, a flipping component, a blowing component and a pressure stabilizing component; the mounting frame is fixedly connected to the filter box and is located in the filter box, two alternating slides are slidably mounted on the mounting frame, and the rotating filter membrane frame is rotatably mounted on the two alternating slides, the cleaning box is fixedly connected to the filter box and is located at one side of the filter box, the collecting frame is connected to the cleaning box and is located at one side of the cleaning box, the sliding component is connected to the alternating slide, the flipping component is connected to the rotating filter membrane frame, the blowing component is connected to the cleaning box, and the pressure stabilizing component is connected to the filter box; The sliding member includes a fixed rack, a driving gear shaft, a driving motor and a control component. The fixed rack is fixedly installed on the two alternating slides; the two driving gear shafts are respectively meshed with the two fixed racks, and the two driving gear shafts are rotatably installed on both sides of the mounting frame; the output shafts of the two driving motors are respectively connected with the two driving gear shafts, and the two driving motors are fixedly installed on both sides of the filter box, and the control component is connected to the alternating slide; The flip component includes a flip shaft, a sleeve gear ring, a fixed gear ring, a connecting sleeve, an extrusion spring, a matching component and a rotating component. The flip shaft is fixed to the sides of the two rotating filter membrane frames; the sleeve gear ring is fixedly sleeved on the two flip shafts; the two fixed gear rings are respectively fixedly mounted on one side of the two alternating slides and are located on the side of the corresponding alternating slides close to the sleeve gear ring; the two connecting sleeves are respectively slidably mounted on one side of the two alternating slides and are respectively sleeved on the corresponding fixed gear rings; the two sides of the extrusion spring are respectively connected to the connecting sleeve and the alternating slide; the matching component is connected to the cleaning box; the rotating component is connected to the cleaning box; The control component includes a contact plate and a sensing module, and the two contact plates are fixedly mounted on the two alternating slides respectively; the two sensing modules are electrically connected to the two driving motors respectively, and are fixedly mounted on one side of the filter box and are located close to the corresponding contact plate; The matching components include an extrusion rotating sleeve and a button control panel. The two extrusion rotating sleeves are respectively rotatably mounted on one side of the cleaning box and are located on the side of the cleaning box close to the corresponding flip axis. The two button control panels are respectively fixedly mounted on the two extrusion rotating sleeves. The rotating component includes a rotating gear ring, a rotating gear shaft and a rotating motor. The two rotating gear rings are fixedly mounted on the two extrusion rotating sleeves respectively; the rotating gear shaft is meshed with the two rotating gear rings at the same time and is rotatably mounted on one side of the cleaning box; the output shaft of the rotating motor is connected to the rotating gear shaft, and the rotating motor is electrically connected to the two button control panels at the same time and is fixedly mounted on one side of the cleaning box.

2. The NMP waste liquid efficient recycling system as claimed in claim 1, characterized in that: The blowing component includes a guide rod, a guide frame, a nozzle, a moving screw, a moving motor and an output component, wherein the guide rod is fixedly connected to the cleaning box and is located in the cleaning box; the guide frame is slidably connected to the guide rod and is located in the cleaning box; the nozzle is fixedly connected to the guide frame and is located on a side of the guide frame close to the alternating slide; the moving screw is threadedly connected to the guide frame and is rotatably mounted on one side of the cleaning box; the output shaft of the moving motor is connected to the moving screw, and the moving motor is fixedly mounted on one side of the cleaning box; the output component is connected to the cleaning box; The output component includes an air pump, a transmission conduit, a connecting conduit and a baffle. The air pump is connected to the cleaning box and is located on one side of the cleaning box; the transmission conduit is connected to the air pump and is located on one side of the air pump; one end of the connecting conduit is connected to the transmission conduit, and the other end of the connecting conduit is connected to the guide frame; the baffle is fixedly installed in the cleaning box; The pressure stabilizing component includes a one-way feed channel, a pressure gauge, a controller, a charging channel and a control valve. The one-way feed channel is connected to the filter box and is located on the top of the filter box; the pressure gauge is connected to the filter box and is located on one side of the filter box; the controller is electrically connected to the pressure gauge and is installed on one side of the filter box; the charging channel is connected to the transmission duct and is installed on one side of the filter box; the control valve is electrically connected to the controller and is installed on the charging channel.

3. A process for efficiently recycling and reusing NMP waste liquid, using the system for efficiently recycling and reusing NMP waste liquid as claimed in claim 1, characterized in that: The following steps are included: The introduced NMP waste liquid is filtered for primary impurity removal by a barrier filter plate provided inside the filter box, and then the waste liquid is filtered for secondary adsorption by an alternating slide and a rotating filter membrane frame installed on a mounting frame inside the filter box; After one set of the alternating slides and the rotating filter membrane rack completes filtering, the sliding member will drive the corresponding set of the alternating slides and the rotating filter membrane rack to move out of the filter box, and at this time, the filter box is filtered by another set of the alternating slides and the rotating filter membrane rack; The removed alternating slide and the rotating filter membrane frame are flipped and cleaned under the action of the flipping member and the blowing member to complete the removal of impurities attached to the surface. After the cleaning is completed, they are rotated and reset, and then re-enter the filter box through the sliding member. The alternating slide and the rotating filter membrane frame that have undergone filtering work are removed and cleaned accordingly after the cleaning is completed and the rotating filter membrane frame is completely moved into the filter box. In this alternating cycle, the rotating filter membrane frame after filtration is cleaned accordingly to ensure the stability of the waste liquid filtration efficiency inside the filter box.

Images