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CN-121990721-A - Decorating paper wastewater purifying and recycling device and method

CN121990721ACN 121990721 ACN121990721 ACN 121990721ACN-121990721-A

Abstract

The invention relates to the technical field of waste water purification, and discloses a decorative paper waste water purification and recovery device and a recovery method, wherein the decorative paper waste water purification and recovery device comprises a purification tank, at least one group of membrane separation and purification mechanisms are arranged in the purification tank, and a water purifying pipe is arranged outside the membrane separation and purification mechanisms; the membrane separation and purification mechanism comprises a positioning frame, a membrane support piece and an aeration mechanism, wherein the positioning frame is placed in the purification tank, a filtering membrane for filtering sewage is arranged in the membrane support piece, and the aeration mechanism is used for aerating the sewage in the purification tank. Through aeration components and filtration membrane that set up in turn, not only act on filtration membrane through aeration components spun bubble, reach and wash away filtration membrane's surface through the bubble, avoid filtration membrane surface to block up, effectively improve filtration membrane's life, and aeration components carries out the reciprocating aeration between a plurality of filtration membranes, effectively guarantee the homogeneity of aeration, make the oxygen-containing in each region of sewage even, and then guarantee the biological purification effect of sewage.

Inventors

  • XU FENG
  • LI HAITAO
  • CHU FULI
  • DING LIHUA
  • LI HAIBIN
  • GUO TAO
  • LI DONGQING
  • YANG XU
  • SUN HUAKUI
  • SUN XIANGXIANG
  • LI JUZHEN

Assignees

  • 枣庄佳莱堡新材料科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260309

Claims (10)

  1. 1. The decorating paper waste water purifying and recycling device comprises a purifying tank (1) and is characterized in that at least one group of membrane separation and purifying mechanisms (5) are arranged in the purifying tank (1), and a water purifying pipe (4) is arranged outside the membrane separation and purifying mechanisms (5); The membrane separation and purification mechanism (5) comprises: the positioning frame (51), the positioning frame (51) is placed in the purifying tank (1), and a lifting hanger is arranged at the top of the positioning frame (51); The membrane support piece (52), the membrane support piece (52) is fixedly connected in the positioning frame (51), a filtering membrane (53) for filtering sewage is arranged in the membrane support piece (52), a water outlet pipe (54) for collecting filtered clean water is arranged outside the filtering membrane (53), and the water outlet pipe (54) is communicated with the water purifying pipe (4); The sewage purifying device comprises an aeration mechanism (55), wherein the aeration mechanism (55) is used for aerating sewage in a purifying tank (1), the aeration mechanism (55) comprises a movable rod (551) movably connected to the outside of a positioning frame (51), an aeration component (552) is arranged outside the movable rod (551), the aeration component (552) and a filtering membrane (53) are alternately arranged, and the movable rod (551) drives the aeration component (552) to move up and down outside the filtering membrane (53).
  2. 2. The device for purifying and recycling waste water of decorative paper according to claim 1, wherein the purifying tank (1) is provided with a water inlet tank (2), the water inlet tank (2) is provided with a grid filtering unit, the water inlet tank (2) is used for receiving sewage conveyed from the outside, the water inlet tank (2) is communicated with the purifying tank (1), the purifying tank (1) is provided with an aeration unit (3) at the outside, and the aeration unit (3) is used for supplying air to the aeration assembly (552).
  3. 3. The decorating paper waste water purifying and recycling device according to claim 1, wherein the movable rod (551) is fixedly connected with a first air duct (553) and a second air duct (554) outside, the first air duct (553) and the second air duct (554) are respectively arranged on two sides of the aeration assembly (552), a connecting pipe (555) is arranged between the first air duct (553) and the second air duct (554), an air duct (56) is arranged outside the connecting pipe (555), a regulating valve (556) is arranged between the connecting pipe (555) and the air duct (56), and the regulating valve (556) is used for controlling the air duct (56) to alternately communicate the first air duct (553) and the second air duct (554) through the connecting pipe (555).
  4. 4. The device for purifying and recycling waste water of decorative paper according to claim 3, wherein the regulating valve (556) comprises an outer valve casing (5561), a first air outlet (5562), a second air outlet (5563) and an air inlet (5564) are respectively arranged outside the outer valve casing (5561), the first air outlet (5562) is communicated with a first air guide pipe (553) through a connecting pipe (555), the second air outlet (5563) is communicated with a second air guide pipe (554) through a connecting pipe (555), the air inlet (5564) is fixedly connected with an air pipe (56), the air pipe (56) is communicated with an aeration unit (3), an inner valve block (5565) is movably connected inside the outer valve casing (5561), an adjusting spring (5566) is arranged between the inner valve block (5565) and the outer valve casing (5561), the inner valve block (5565) is used for adjusting the air inlet (5564) to be respectively communicated with the first air outlet (5562) and the second air outlet (5563), the outer part of the inner valve block (5565) is fixedly connected with a push rod (5567) extending to the outer side of the outer valve casing (5561), and the push rod (5567) is fixedly connected with a bottom plate (5567) of the positioning frame (5567).
  5. 5. The decorating paper waste water purifying and recycling device according to claim 1, wherein the outer part of the positioning frame (51) is fixedly connected with a guide rail (5572), the outer part of the movable rod (551) is fixedly connected with a transmission rod (557), a driving wheel (5571) is rotatably connected between the movable rod (551) and the transmission rod (557), the driving wheel (5571) is movably connected to the outer side of the guide rail (5572), a driving motor (558) is fixedly connected to the outer part of the transmission rod (557), the transmission rod (557) comprises an inner transmission shaft, the transmission shaft is arranged between the driving motor (558) and the driving wheel (5571), a transmission gear set is arranged among an output end of the driving motor (558), the transmission shaft and the driving wheel (5571), and the driving motor (558) is used for driving the driving wheel (5571) to rotate through the transmission shaft.
  6. 6. The device for purifying and recycling waste water of decorating paper according to claim 4, wherein the aeration component (552) comprises a fixed rod (5521) fixedly connected to the outside of the movable rod (551), a fixed block (5522) is fixedly connected to the outside of the fixed rod (5521), a driving shaft tube (5523) is rotatably connected to the inside of the fixed rod (5521), a pneumatic motor (559) is fixedly connected to the outside of the movable rod (551), one side air port of the pneumatic motor (559) is communicated with the first air duct (553), an output shaft of the pneumatic motor (559) is fixedly connected with the driving shaft tube (5523), the other side air port of the pneumatic motor (559) is communicated with the driving shaft tube (5523), an aeration tube (5525) is fixedly connected to the outside of the driving shaft tube (5523), and aeration nozzles are uniformly arranged on the outside of the aeration tube (5525).
  7. 7. The device for purifying and recycling waste water of decorative paper according to claim 6, wherein a cleaning sleeve (5526) for scraping impurities on the surface of the aeration pipe (5525) is arranged outside the aeration pipe (5525), a main gear (5524) is fixedly connected to the outside of the driving shaft pipe (5523), a connecting gear (5528) is connected to the outside of the main gear (5524) in a meshed mode, an outer gear ring (5527) is connected to the outside of the connecting gear (5528) in a meshed mode, the outer gear ring (5527) and the connecting gear (5528) are both connected to the outside of the fixed block (5522) in a rotating mode, and the outer gear ring (5527) is fixedly connected with the cleaning sleeve (5526).
  8. 8. The device of claim 7, wherein the cleaning sleeve (5526) comprises a movable ring (55261) fixedly connected to the outside of the outer tooth ring (5527), the outside of the movable ring (55261) is fixedly connected with an outer scraping rod (55262), cutting edges (55264) are arranged on two sides of the outer scraping rod (55262), the cutting edges (55264) are attached to the outside of the aeration pipe (5525), a plurality of claw teeth (55263) are fixedly connected to the outside of the outer scraping rod (55262), comb teeth (57) of the adapting cleaning sleeve (5526) are arranged at the bottom of the positioning frame (51), and when the movable rod (551) moves downwards to the bottom, the cleaning sleeve (5526) is inserted into the comb teeth (57).
  9. 9. A method for purifying and recovering waste water of decorative paper according to any one of claims 1 to 8, characterized by comprising the steps of: s1, introducing sewage into a water inlet tank (2), regulating the pH value of the sewage in the water inlet tank (2), and controlling the pH value of the sewage to be stable at pH6-9; S2, filtering the sewage by utilizing a grid filtering unit in the water inlet tank (2), reducing the suspended matter content of the sewage, introducing the filtered sewage into an anaerobic tank, controlling the oxygen content of the anaerobic tank, and performing anaerobic treatment for 5-20 hours; s3, adjusting the pH value after anaerobic treatment, controlling the pH value to be stable at pH6.5-7.5, and introducing the sewage after pH value adjustment into a purifying tank (1); S4, performing aeration purification treatment in the purification tank (1), starting the aeration unit (3), pumping high-pressure air into the aeration mechanism (55) by the aeration unit (3), and aerating sewage by the air through the aeration component (552); S5, filtering the sewage by a filtering membrane (53), and enabling the filtered clean water to enter a water outlet pipe (54) and then flow out through a water purifying pipe (4).
  10. 10. The method for purifying and recycling waste water of decorative paper according to claim 9, wherein in the step S4, the movable rod (551) drives the aeration component (552) to reciprocate up and down outside the filtering membranes (53) to perform mobile aeration.

Description

Decorating paper wastewater purifying and recycling device and method Technical Field The invention relates to the technical field of waste water purification, in particular to a decorative paper waste water purification and recovery device and a recovery method. Background The decorative paper is widely applied to the fields of furniture, decoration and the like, the production needs to be subjected to pretreatment, printing, finishing and other multiple processes, and a large amount of wastewater with complex components is produced, and the wastewater contains pollutants such as cellulose, organic pigment, resin monomer, solvent and the like, if the wastewater is not effectively treated and directly discharged, the environmental hazard to the surrounding water is easily caused, and aiming at the wastewater, the current industry mainly adopts a pretreatment and biochemical treatment combined device, and the wastewater is purified by a biological purification treatment mode. In the chinese patent of patent publication No. CN119038738B, an MBR membrane module is disclosed, which comprises a housin, the casing rigid coupling has the first board that the equidistance was arranged and the second board that the equidistance was arranged, the second board is close to adjacent one side rigid coupling of first board has the first fixed plate that the equidistance was arranged, the first board rotates and is connected with the second fixed plate that the equidistance was arranged, first fixed plate with adjacent rigid coupling has the membrane silk of evenly arranging between the second fixed plate, be provided with in the casing and be used for evenly arranging the blast module that the membrane silk all blows, blast module is including the air pump, the air pump install in outside the casing be close to one side of first motor, be close to in the casing one side sliding connection of concentration pipe has the removal frame, be provided with the air passing channel in the removal frame, the through-hole of removal frame with the air passing channel intercommunication, the air passing channel with be connected with the intermediate pipe between the air pump. Said invention utilizes the second fixing plate to drive adjacent several membrane wires to make them deflect, and makes them mutually scratch and scrape in the course of working, and utilizes the up-and-down moving frame to change the first contact zone of air and sewage in the shell body so as to make fresh air provide uniformly-distributed oxygen for the living beings of every place in the sewage, and prevent the air from continuously blowing sewage into the same position all the time. However, the existing MBR membrane is generally composed of external membrane wires, the whole shape is fragile, when adjacent membrane wires are scratched in a staggered manner, the membrane wires are easy to damage, so that the service life of the membrane wires is influenced, a moving frame is only positioned on the outer sides of the membrane wires, even if the moving frame moves up and down to perform aeration, sewage on the outer sides of the membrane wires can be aerated, and when the aeration is further caused, the oxygen supply effect of the central area of the membrane wires is reduced relative to the external oxygen supply effect, so that the condition that the oxygen is unevenly distributed still exists, and the sewage purifying effect is reduced. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a decorative paper wastewater purifying and recycling device and a recycling method, which have the advantages of good aeration effect, effectively prolonging the service life of a filtering membrane and improving the biological purifying effect. In order to achieve the above purpose, the present invention provides the following technical solutions: The decorative paper wastewater purifying and recycling device comprises a purifying tank, wherein at least one group of membrane separation and purification mechanisms are arranged in the purifying tank, and a water purifying pipe is arranged outside the membrane separation and purification mechanisms; the membrane separation purification mechanism comprises: The positioning frame is placed in the purifying tank, and a lifting hanger is arranged at the top of the positioning frame; the membrane support is fixedly connected to the inside of the positioning frame, a filtering membrane for filtering sewage is arranged in the membrane support, a water outlet pipe for collecting filtered clear water is arranged outside the filtering membrane, and the water outlet pipe is communicated with the water purifying pipe; The aeration mechanism is used for aerating sewage in the purifying tank and comprises a movable rod movably connected to the outer part of the positioning frame, an aeration component is arranged on the outer part of the movable rod, the aeration component and the filtering membrane a