Knitwear and textile dyeing wastewater treatment device

Abstract

The invention discloses a knitwear and textile dyeing wastewater treatment device, and belongs to the technical field of textile wastewater treatment, the knitwear and textile dyeing wastewater treatment device comprises: a pretreatment mechanism, which comprises a screen frame, a first screen and a second screen, and two sides of the screen frame are both provided with a transmission mechanism and a guide mechanism; the treatment box is arranged at the top of the screen frame and is provided with a driving mechanism, and a stirring mechanism and an electro-catalytic reaction mechanism are arranged in the treatment box; and the salt separation mechanism comprises a booster pump and a nanofiltration membrane. Efficient purification is achieved through cooperative processing, firstly, a dynamic vibration screening system is adopted, a pressure sensor monitors the load of a screen in real time, the rotating speed of a driving motor is intelligently adjusted, an eccentric balance weight and guide rail linkage mechanism is matched, periodic lifting actions are overlaid in vibration, screen holes are effectively prevented from being blocked, and the filtering uniformity is improved; organic matters in the wastewater are decomposed through the electro-catalysis reaction mechanism, multivalent salt ions in the wastewater are separated through the salt separation mechanism, and sufficient purification of the wastewater is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of textile wastewater treatment, in particular to a device for treating textile dyeing wastewater. Background Art

[0002] In the field of textile dyeing wastewater treatment, wastewater usually contains complex pollutants such as fiber debris, difficult-to-degrade organic matter (such as azo dyes), high salt content, and suspended particles. Traditional treatment processes often use a combination of "physical screening + chemical oxidation + biochemical treatment" technology, which has the following defects:

[0003] 1) Low screening efficiency: The screen with fixed vibration mode is difficult to adapt to the debris with variable particle size distribution. Fine fibers are easy to clog the screen holes, and coarse particles are not screened thoroughly, requiring frequent shutdown and cleaning.

[0004] 2) Incomplete sieving oxidation: Conventional ozone oxidation relies on gas-liquid mass transfer efficiency, has low dissolved ozone concentration, has limited ability to degrade hydrophobic dyes and macromolecular organic matter, and has a homogeneous catalyst (such as Fe 2+ ) It is easy to lose and cause secondary pollution;

[0005] 3) Screening salt accumulation problem: Biochemical treatment cannot remove inorganic salts. Although reverse osmosis can desalinate, it consumes a lot of energy. Ordinary nanofiltration membranes have a low rejection rate for monovalent ions, resulting in excessive salinity in recycled water.

[0006] 4) Insufficient screening intelligence: Existing equipment lacks load perception and dynamic control capabilities, cannot optimize operating parameters in real time according to pollutant characteristics, and has poor processing stability.

[0007] Existing technologies, such as the "vibration screening-ozone oxidation integrated wastewater treatment device" disclosed in CN112299629A, integrate screening and oxidation functions, but its screen vibration mode is fixed and cannot adaptively adjust the amplitude and frequency according to the debris particle size, and there is still a risk of screening blockage; the "electrocatalytic ozone wastewater processor" proposed in CN113636654A improves oxidation efficiency through electrode catalysis, but does not solve the problems of uneven gas-liquid mixing and salt removal, and the membrane component is easily contaminated; therefore, we propose a needle textile dyeing wastewater treatment device to solve this problem. Summary of the Invention

[0008] The object of the present invention is to provide a device for treating wastewater from dyeing of textiles to solve the problems raised in the above background technology.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A device for treating wastewater from dyeing of textiles, comprising:

[0011] The pretreatment mechanism includes a screen frame, a first screen and a second screen. A transmission mechanism and a guide mechanism are provided on both sides of the screen frame. The transmission mechanism includes a guide rail, a sliding seat, a rotating arm, a rotating frame, and a rotating shaft. The guide mechanism includes a guide plate, a guide groove, and a guide wheel.

[0012] A processing box, which is arranged on the top of the screen frame and is provided with a driving mechanism, and a stirring mechanism and an electrocatalytic reaction mechanism are provided inside the processing box;

[0013] The salt separation mechanism includes a booster pump and a nanofiltration membrane.

[0014] Preferably, the guide rail is fixedly connected to the outer side of the screen frame, and the sliding seat is slidably sleeved on the outer side of the guide rail, one side of the sliding seat is fixedly connected to a round rod, the round rod is rotatably connected to the inside of the rotating arm, the rotating arm is slidably connected in the rotating frame, and the other end of the rotating arm is hingedly connected to a connecting rod, one end of the rotating shaft is fixedly connected to the rotating frame, and a movable plate is slidably sleeved on the outer side of the rotating shaft, the other end of the connecting rod is hinged on the outer side of the movable plate, and the top and bottom of the movable plate are fixedly connected to inclined rods;

[0015] The outer side of the rotating shaft is fixedly sleeved with a rotating rod, the outer side of the rotating rod is slidably sleeved with a counterweight plate, and the two counterweight plates are respectively slidably sleeved on the outer sides of the corresponding oblique rods;

[0016] The other end of the rotating rod is fixedly connected to a cross bar, the oblique rod is slidably sleeved on the outer side of the corresponding cross bar, and the two cross bars are fixedly connected to a connecting spring on the side close to each other, and the other end of the connecting spring is fixedly connected to the corresponding counterweight plate;

[0017] An L-shaped frame is rotatably sleeved on the outer side of the rotating shaft, and the L-shaped frame is fixedly connected to the outer side of the processing box.

[0018] Preferably, the driving mechanism includes a driving motor, a driving shaft and two driven pulleys, the two driven pulleys are respectively fixedly sleeved on the outer sides of the corresponding rotating shafts, and the outer side of the driving shaft is fixedly installed with a driven gear and a driving pulley, the driving pulley and the driven pulley on the same side are driven by a same synchronous belt, and the driving motor is fixedly installed on one side of the processing box, and the output shaft of the driving motor is fixedly connected to a driving gear, the driving gear is meshed with the driven gear, and the driving shaft is rotatably installed on the inner walls on both sides of the processing box.

[0019] Preferably, the guide plate is fixedly connected to the outside of the screen frame, the guide wheel is rotatably connected to the bottom end of the guide plate, and the guide wheel is rollingly connected in the guide groove, and the guide groove is fixedly connected to the outside of the processing box, and the guide groove includes a horizontal section and an upward section connected to both ends of the horizontal section.

[0020] Preferably, the electrocatalytic reaction mechanism includes a mounting frame, an ozone generator and multiple air outlets, the air outlets are fixedly installed in the mounting frame, and the mounting frame is fixedly installed in the processing box, adjacent air outlets are connected with connecting pipes, the bottoms of multiple air outlets are connected with multiple inclined nozzles, and the bottom of one of the air outlets is connected with an air inlet pipe, the other end of the air inlet pipe is connected to the air outlet of the ozone generator, and an electric control valve is provided on the air inlet pipe, and an anode electrode plate and a cathode electrode plate are fixedly installed on the inner wall of the mounting frame.

[0021] Preferably, the water inlet of the booster pump is connected to the treatment box, the water outlet of the booster pump is connected to a water outlet pipe, the water inlet of the nanofiltration membrane is connected to the water outlet pipe, the nanofiltration membranes are arranged in multiple groups, and the water outlets of the multiple nanofiltration membranes are connected to the same drain pipe;

[0022] A fixing plate is fixedly installed on one side of the processing box, and the nanofiltration membrane is fixedly installed in the fixing plate.

[0023] Preferably, the stirring mechanism includes: an installation box, a stirring shaft and a rotating drum, the rotating drum and the stirring shaft are both rotatably installed in the installation box, and the top end of the stirring shaft is fixedly connected to a driven bevel gear, the outer side of the rotating drum is fixedly sleeved with a driving bevel gear, the driving bevel gear is meshed with the driven bevel gear, and a connecting hole is opened on one side of the rotating drum, one end of the connecting hole is provided with a round chamfer, and a plurality of stirring paddles are fixedly installed on the outer side of the stirring shaft;

[0024] A connecting plate adapted to the connecting hole is fixedly sleeved on the outer side of the driving shaft, and the stirring mechanism is provided in two groups.

[0025] Preferably, a switching mechanism is further included, the switching mechanism including a servo motor, a rotating plate and two connecting plates, one end of the two connecting plates is hinged to the two ends of the rotating plate respectively, and the other end of the connecting plate is hinged to the outside of the corresponding installation box, the servo motor is fixedly installed on the rear side of the processing box, and the rear side of the rotating plate is fixedly connected to a connecting shaft, and the other end of the connecting shaft is fixedly connected to the output shaft of the servo motor;

[0026] A plurality of cross beams are fixedly installed inside the processing box, and the installation box is slidably sleeved on the outer sides of the plurality of cross beams.

[0027] Preferably, connecting rods are fixedly connected to both sides of the top of the first screen, the other ends of the connecting rods are fixedly connected to the first pressure sensor, first circular grooves are opened on both sides of the top of the screen frame, and the first pressure sensors are fixedly connected in the corresponding first circular grooves;

[0028] A second circular groove is provided on the bottom inner wall of the screen frame, and support columns are fixedly connected to both sides of the bottom of the second screen. The bottom end of the support column is fixedly connected to a second pressure sensor, and the second pressure sensor is fixedly installed in the corresponding second circular groove.

[0029] Preferably, a controller is provided on one side of the processing box, and the controller is signal-connected to the first pressure sensor, the second pressure sensor, the booster pump, the drive motor, the rotary motor and the electronically controlled valve.

[0030] The beneficial effects of the present invention are:

[0031] 1. In the present invention, a needle textile dyeing wastewater treatment device is described, which introduces needle textile dyeing wastewater into a screen frame, filters large particle size debris in the wastewater through a first screen, and then further filters small particle size debris in the wastewater through a second screen. The filtered wastewater enters a treatment box, and the driving motor is started to drive the driving gear to rotate. The driving gear drives the driving shaft to rotate by meshing with the driven gear. The driving shaft drives the two rotating shafts to rotate synchronously through the driving pulley, the synchronous belt and the driven pulley. The rotating shaft drives the rotating rod and the rotating frame to rotate synchronously. The rotating frame drives the rotating arm to rotate, thereby driving the round rod and the sliding seat to perform circular motion. The sliding seat drives the screen frame to move back and forth through sliding cooperation with the guide rail, thereby driving the first screen and the second screen to move back and forth, so that the wastewater is evenly distributed and the screening effect is improved. The pressure on the top of the first screen and the second screen is monitored by the first pressure sensor and the second pressure sensor. When the pressure value monitored by the first pressure sensor is significantly smaller than the pressure value monitored by the second pressure sensor, it indicates that there is a lot of wastewater in the wastewater. If the content of small-sized debris is high, the output speed of the driving motor is increased by the controller, thereby increasing the speed of the rotating shaft, thereby increasing the frequency of the front and rear vibration of the screen frame, and at the same time, the rotating rod drives the counterweight plate to perform circular motion, and the counterweight plate is thrown outward under the action of centrifugal force, and drives the movable plate to approach the rotating frame through cooperation with the inclined rod, and drives the rotating arm to slide in the rotating frame through the connecting rod, so that the connection is close to the rotating shaft, thereby reducing the sheet metal for the circular motion of the round rod, thereby reducing the amplitude of the front and rear vibration of the screen frame, thereby adopting high vibration frequency and low amplitude to achieve enhanced screening of small-sized debris and avoid accumulation. On the contrary, when the pressure value monitored by the first pressure sensor is significantly greater than the pressure value monitored by the second pressure sensor, the output speed of the driving motor is increased by the controller, thereby reducing the vibration frequency of the screen frame and increasing the vibration amplitude, thereby promoting the screening of large-sized debris. At the same time, when the front and rear vibration amplitude of the screen frame is large enough, the guide wheel can enter the upturned section of the guide groove, thereby driving the screen frame to vibrate upward, further improving the screening effect;

[0032] 2. In the present invention, the needle textile dyeing wastewater treatment device is described. By opening the electric control valve and the ozone generator, the ozone generated in the ozone generator enters the air outlet through the air inlet pipe, and is introduced into other air outlets through the connecting pipe, and then ejected through multiple oblique nozzles, thereby forming a bubble group, increasing the gas-liquid contact area. At the same time, a pulse current is passed through the anode electrode plate and the cathode electrode plate. The anode electrode plate catalyzes the decomposition of water under the pulse current to generate hydroxyl radicals, and the cathode electrode plate catalyzes the reduction of ozone to generate superoxide radicals and hydrogen peroxide. These free radicals react with the dye molecules and organic pollutants in the wastewater to destroy their chromophores and chemical structures, and gradually decompose the macromolecular organic matter into small molecular acids, carbon dioxide and water, thereby achieving decolorization and degradation.

[0033] 3. In the present invention, the booster pump starts to operate, providing sufficient pressure for the wastewater, pushing the wastewater from the water inlet through the outlet pipe into multiple parallel nanofiltration membranes. Driven by the pressure of the booster pump, the wastewater flows through the surface of the nanofiltration membrane at a high speed, forming a turbulent state, reducing the accumulation of pollutants on the membrane surface. The pore size of the nanofiltration membrane is about 1 nanometer, allowing water molecules and small molecular organic matter to pass through (water production side), while intercepting multivalent salt ions (such as Ca 2+ 、SO4 2- ) and some monovalent salts (such as Na + , Cl-), while the surface of the nanofiltration membrane is negatively charged, which repels the negatively charged sulfate and nitrate ions through electrostatic action, thereby enhancing the desalination effect, and the purified water passing through the membrane is discharged through the drain pipe;

[0034] 4. In the present invention, the described needle textile dyeing wastewater treatment device achieves efficient purification through collaborative processing. First, a dynamic vibration screening system is adopted. The pressure sensor monitors the screen load in real time, intelligently adjusts the drive motor speed, and adaptively switches the high-frequency low-amplitude (for fine debris) or low-frequency large-amplitude (for coarse debris) screening mode according to the debris particle size distribution. In conjunction with the eccentric counterweight and guide rail linkage mechanism, a periodic lifting action is superimposed during the vibration, which effectively prevents the sieve holes from being blocked and improves the filtration uniformity. Then, the organic matter in the wastewater is decomposed by the electrocatalytic reaction mechanism, and the multivalent salt ions in the wastewater are separated by the salt separation mechanism, thereby achieving full purification of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of a needle textile dyeing wastewater treatment device proposed by the present invention;

[0036] Figure 2 This is a schematic cross-sectional view of a device for treating textile dyeing wastewater proposed by the present invention;

[0037] Figure 3 for Figure 2 A partial enlarged view of part A;

[0038] Figure 4 for Figure 3 A partial enlarged view of part B;

[0039] Figure 5 This is a schematic side cross-sectional view of a device for treating textile dyeing wastewater proposed by the present invention;

[0040] Figure 6 Schematic diagram of the three-dimensional structure of the electrocatalytic reaction mechanism proposed in the present invention;

[0041] Figure 7 This is a schematic diagram of the three-dimensional structure of the electrocatalytic reaction mechanism proposed in the present invention from another perspective;

[0042] Figure 8 This is a schematic diagram of the three-dimensional structure of the driving mechanism and transmission mechanism proposed in the present invention;

[0043] Figure 9 This is a partial three-dimensional structural diagram of the driving mechanism and transmission mechanism proposed in the present invention;

[0044] Figure 10 This is a schematic diagram of the three-dimensional structure of the transmission mechanism proposed in the present invention;

[0045] Figure 11 This is a schematic diagram of the three-dimensional structure of the transmission mechanism proposed by the present invention from another perspective;

[0046] Figure 12 This is a schematic diagram of the partial three-dimensional structure of the stirring mechanism proposed in the present invention;

[0047] Figure 13 This is a schematic diagram of the three-dimensional structure of the stirring mechanism proposed in the present invention;

[0048] Figure 14 This is a schematic diagram of the three-dimensional structure of the stirring mechanism proposed by the present invention from another perspective;

[0049] Figure 15 This is a schematic diagram of the exploded three-dimensional structure of the screen frame, the first screen and the second screen proposed in the present invention;

[0050] Figure 16 This is a schematic diagram of the three-dimensional structure of the screen frame and the guide mechanism proposed in the present invention.

[0051] 1. Processing box; 2. Screen frame; 201. First screen; 202. Second screen; 203. Connecting rod; 204. First pressure sensor; 205. Support column; 206. Second pressure sensor; 3. Transmission mechanism; 301. Guide rail; 302. Sliding seat; 303. Round rod; 304. Rotating arm; 305. Rotating frame; 306. Rotating shaft; 307. Moving plate; 308. Connecting rod; 309. Rotating rod; 310. Counterweight plate; 311. Diagonal rod; 312. Connecting spring; 313. Cross bar; 314. L-shaped frame; 4. Driving mechanism; 401. Driving motor; 402. Driving gear; 403. Driven gear; 404. Driving shaft; 405. Driving pulley; 406. Synchronous belt; 407. Driven pulley; 5. Stirring mechanism; 501. An Packing; 502, crossbeam; 503, stirring paddle; 504, stirring shaft; 505, driven bevel gear; 506, driving bevel gear; 507, rotating drum; 6, salt separation mechanism; 601, booster pump; 602, nanofiltration membrane; 603, fixing plate; 604, drain pipe; 605, outlet pipe; 7, electrocatalytic reaction mechanism; 701, ozone generator; 702, mounting frame; 703, anode electrode plate; 704, cathode electrode plate; 705, air outlet tube; 706, oblique nozzle; 707, connecting pipe; 708, air inlet pipe; 709, electric control valve; 8, guiding mechanism; 801, guide plate; 802, guide wheel; 803, guide groove; 9, switching mechanism; 901, servo motor; 902, connecting shaft; 903, rotating plate; 904, connecting plate; 10, controller. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] Reference Figures 1-16 , a needle textile dyeing wastewater treatment device, comprising:

[0054] The pretreatment mechanism includes a screen frame 2, a first screen 201, and a second screen 202. A transmission mechanism 3 and a guide mechanism 8 are provided on both sides of the screen frame 2. The transmission mechanism 3 includes a guide rail 301, a sliding seat 302, a rotating arm 304, a rotating frame 305, and a rotating shaft 306. The guide mechanism 8 includes a guide plate 801, a guide groove 803, and a guide wheel 802.

[0055] The processing box 1 is provided on the top of the screen frame 2 and is provided with a driving mechanism 4. The interior of the processing box 1 is provided with a stirring mechanism 5 and an electrocatalytic reaction mechanism 7;

[0056] The salt separation mechanism 6 includes a booster pump 601 and a nanofiltration membrane 602 .

[0057] In this embodiment, the guide rail 301 is fixedly connected to the outside of the screen frame 2, and the sliding seat 302 is slidably sleeved on the outside of the guide rail 301, and one side of the sliding seat 302 is fixedly connected to a round rod 303, and the round rod 303 is rotatably connected to the inside of the rotating arm 304, and the rotating arm 304 is slidably connected to the rotating frame 305, and the other end of the rotating arm 304 is hinged to a connecting rod 308, one end of the rotating shaft 306 is fixedly connected to the rotating frame 305, and a movable plate 307 is slidably sleeved on the outside of the rotating shaft 306, and the other end of the connecting rod 308 is hinged to the outside of the movable plate 307, and the top and bottom of the movable plate 307 are fixedly connected to an inclined rod 311;

[0058] The outer side of the rotating shaft 306 is fixedly sleeved with a rotating rod 309, and the outer side of the rotating rod 309 is slidably sleeved with a counterweight plate 310. The two counterweight plates 310 are slidably sleeved on the outer sides of the corresponding inclined rods 311.

[0059] The other end of the rotating rod 309 is fixedly connected to the cross bar 313, and the oblique rod 311 is slidably connected to the outer side of the corresponding cross bar 313. The two cross bars 313 are fixedly connected to the side close to each other with a connecting spring 312, and the other end of the connecting spring 312 is fixedly connected to the corresponding counterweight plate 310;

[0060] An L-shaped frame 314 is rotatably sleeved on the outer side of the rotating shaft 306 , and the L-shaped frame 314 is fixedly connected to the outer side of the processing box 1 .

[0061] In this embodiment, the driving mechanism 4 includes a driving motor 401, a driving shaft 404 and two driven pulleys 407. The two driven pulleys 407 are fixedly sleeved on the outer sides of the corresponding rotating shafts 306, and the outer sides of the driving shaft 404 are fixedly installed with a driven gear 403 and a driving pulley 405. The driving pulley 405 and the driven pulley 407 on the same side are driven by the same synchronous belt 406. The driving motor 401 is fixedly installed on one side of the processing box 1, and the output shaft of the driving motor 401 is fixedly connected with a driving gear 402. The driving gear 402 is meshed with the driven gear 403, and the driving shaft 404 is rotatably installed on the inner walls on both sides of the processing box 1.

[0062] In this embodiment, the guide plate 801 is fixedly connected to the outside of the screen frame 2, the guide wheel 802 is rotatably connected to the bottom end of the guide plate 801, and the guide wheel 802 is rollingly connected in the guide groove 803, and the guide groove 803 is fixedly connected to the outside of the processing box 1, and the guide groove 803 includes a horizontal section and an upward section connected to both ends of the horizontal section.

[0063] In this embodiment, the electrocatalytic reaction mechanism 7 includes a mounting frame 702, an ozone generator 701 and multiple air outlets 705. The air outlets 705 are fixedly installed in the mounting frame 702, and the mounting frame 702 is fixedly installed in the processing box 1. Adjacent air outlets 705 are connected with connecting pipes 707. The bottoms of multiple air outlets 705 are connected with multiple inclined nozzles 706, and the bottom of one of the air outlets 705 is connected with an air inlet pipe 708. The other end of the air inlet pipe 708 is connected with the air outlet of the ozone generator 701, and an electric control valve 709 is provided on the air inlet pipe 708. The anode electrode plate 703 and the cathode electrode plate 704 are fixedly installed on the inner wall of the mounting frame 702.

[0064] In this embodiment, the water inlet of the booster pump 601 is connected to the treatment box 1, the water outlet of the booster pump 601 is connected to the outlet pipe 605, the water inlet of the nanofiltration membrane 602 is connected to the outlet pipe 605, the nanofiltration membrane 602 is provided in multiple groups, and the water outlets of the multiple nanofiltration membranes 602 are connected to the same drain pipe 604;

[0065] A fixing plate 603 is fixedly installed on one side of the processing box 1 , and the nanofiltration membrane 602 is fixedly installed in the fixing plate 603 .

[0066] In this embodiment, the stirring mechanism 5 includes: an installation box 501, a stirring shaft 504 and a rotating drum 507. The rotating drum 507 and the stirring shaft 504 are both rotatably installed in the installation box 501, and the top of the stirring shaft 504 is fixedly connected to a driven bevel gear 505. The outer side of the rotating drum 507 is fixedly sleeved with a driving bevel gear 506. The driving bevel gear 506 is meshed with the driven bevel gear 505. A connecting hole is opened on one side of the rotating drum 507, and one end of the connecting hole is provided with a round chamfer. A plurality of stirring paddles 503 are fixedly installed on the outer side of the stirring shaft 504.

[0067] A connecting plate 11 adapted to the connecting hole is fixedly sleeved on the outer side of the driving shaft 404, and the stirring mechanism 5 is provided in two groups.

[0068] This embodiment further includes a switching mechanism 9, which includes a servo motor 901, a rotating plate 903, and two connecting plates 904. One end of the two connecting plates 904 is hinged to the two ends of the rotating plate 903, and the other end of the connecting plate 904 is hinged to the outside of the corresponding installation box 501. The servo motor 901 is fixedly installed on the rear side of the processing box 1, and the rear side of the rotating plate 903 is fixedly connected to a connecting shaft 902. The other end of the connecting shaft 902 is fixedly connected to the output shaft of the servo motor 901.

[0069] A plurality of cross beams 502 are fixedly installed inside the processing box 1 , and the installation box 501 is slidably sleeved on the outer sides of the plurality of cross beams 502 .

[0070] In this embodiment, connecting rods 203 are fixedly connected to both sides of the top of the first screen 201, and the other end of the connecting rod 203 is fixedly connected to the first pressure sensor 204. First circular grooves are opened on both sides of the top of the screen frame 2, and the first pressure sensors 204 are fixedly connected in the corresponding first circular grooves;

[0071] A second circular groove is provided on the bottom inner wall of the screen frame 2, and support columns 205 are fixedly connected to both sides of the bottom of the second screen 202. The bottom end of the support column 205 is fixedly connected to a second pressure sensor 206, and the second pressure sensor 206 is fixedly installed in the corresponding second circular groove.

[0072] In this embodiment, a controller 10 is provided on one side of the processing box 1 , and the controller 10 is signal-connected to the first pressure sensor 204 , the second pressure sensor 206 , the booster pump 601 , the drive motor 401 , the rotary motor and the electronically controlled valve 709 .

[0073] In this embodiment, the needle textile dyeing wastewater is introduced into the screen frame 2, the first screen 201 is used to filter the debris with large particle size in the wastewater, and then the second screen 202 is used to further filter the debris with small particle size in the wastewater. The filtered wastewater enters the treatment box 1, and the driving motor 401 is started to drive the driving gear 402 to rotate. The driving gear 402 drives the driving shaft 404 to rotate by meshing with the driven gear 403. The driving shaft 404 drives the two rotating shafts 306 to rotate synchronously through the driving pulley 405, the synchronous belt 406 and the driven pulley 407. The rotating shaft 306 drives the rotating rod 309 and the rotating frame 305 to rotate synchronously. The rotating frame 305 drives the rotating arm 304 to rotate, thereby driving the round rod 303 and the sliding seat 302 to perform circular motion. The sliding seat 302 drives the screen frame 2 to move back and forth through the sliding cooperation with the guide rail 301, thereby driving the first screen 201 and the second screen 202 to move back and forth, so that the wastewater is evenly distributed and the screening effect is improved. The pressure on the top of the first screen 201 and the second screen 202 is monitored by the first pressure sensor 204 and the second pressure sensor 206. When the pressure value monitored by the first pressure sensor 204 is significantly less than the pressure value monitored by the second pressure sensor 206, it is said that If there is a large amount of debris with small particle size in the wastewater, the controller 10 controls the output speed of the drive motor 401 to increase, thereby increasing the speed of the rotating shaft 306, and then increasing the frequency of the back and forth vibration of the screen frame 2. At the same time, the rotating rod 309 drives the counterweight plate 310 to perform a circular motion. The counterweight plate 310 is thrown outward under the action of centrifugal force, and drives the moving plate 307 to approach the rotating frame 305 through the cooperation with the inclined rod 311, and drives the rotating arm 304 to slide in the rotating frame 305 through the connecting rod 308, so that the connection is close to the rotating shaft 306, thereby reducing the sheet metal of the circular motion of the round rod 303, thereby reducing the screen frame. 2, and the amplitude of the front-back vibration is adjusted, thereby adopting high vibration frequency and low amplitude to realize enhanced screening of small-size debris and avoid accumulation. On the contrary, when the pressure value monitored by the first pressure sensor 204 is significantly greater than the pressure value monitored by the second pressure sensor 206, the output speed of the drive motor 401 is increased by the controller 10, thereby reducing the vibration frequency of the screen frame 2 and increasing the vibration amplitude, thereby promoting the screening of large-size debris. At the same time, when the front-back vibration amplitude of the screen frame 2 is large enough, the guide wheel 802 can enter the upward section of the guide groove 803, thereby driving the screen frame 2 to vibrate upward, further improving the screening effect.

[0074] By opening the electric control valve 709 and the ozone generator 701, the ozone generated in the ozone generator 701 enters the gas outlet 705 through the air inlet pipe 708, and is introduced into other gas outlets 705 through the connecting pipe 707, and then ejected through multiple oblique nozzles 706, thereby forming a bubble group, increasing the gas-liquid contact area. At the same time, a pulse current is passed through the anode electrode plate 703 and the cathode electrode plate 704. The anode electrode plate 703 catalyzes the decomposition of water under the pulse current to produce hydroxyl free radicals, and the cathode electrode plate 704 catalyzes the reduction of ozone to produce superoxide free radicals and hydrogen peroxide. These free radicals undergo a chain reaction with the dye molecules and organic pollutants in the wastewater, destroying their chromophore groups and chemical structures, and gradually decomposing the macromolecular organic matter into small molecular acids, carbon dioxide and water, thereby achieving decolorization and degradation;

[0075] The servo motor 901 is started to rotate the connecting shaft 902 and the rotating plate 903. The rotating plate 903 drives the two installation boxes 501 away from each other through the two connecting plates 904, so that the connecting plate is inserted into the connecting hole of the rotating drum 507. The connecting plate drives the rotating drum 507 to rotate. The rotating drum 507 drives the stirring shaft 504 and the stirring paddle 503 to rotate through the engagement of the driving bevel gear 506 and the driven bevel gear 505, thereby further increasing the reaction rate of the free radicals with the dye molecules and the organic compound.

[0076] The booster pump 601 starts running, providing sufficient pressure for the wastewater, pushing the wastewater from the water inlet through the outlet pipe 605 into multiple parallel nanofiltration membranes 602. Driven by the pressure of the booster pump 601, the wastewater flows through the surface of the nanofiltration membrane 602 at a high speed, forming a turbulent state, reducing the accumulation of pollutants on the membrane surface. The pore size of the nanofiltration membrane 602 is about 1 nanometer, allowing water molecules and small molecular organic matter to pass through (water production side), while intercepting multivalent salt ions (such as Ca 2+ 、SO4 2- ) and some monovalent salts (such as Na + 、Cl - ), and at the same time, the surface of the nanofiltration membrane 602 is negatively charged, which repels the sulfate and nitrate ions that are also negatively charged through electrostatic action, thereby enhancing the desalination effect, and the purified water that passes through the membrane is discharged through the drain pipe 604.

[0077] The above describes in detail the textile dyeing wastewater treatment device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a number of improvements and modifications may be made to the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. A needle textile dyeing wastewater treatment device, characterized in that: include: A pretreatment mechanism comprises a screen frame (2), a first screen (201) and a second screen (202); a transmission mechanism (3) and a guide mechanism (8) are provided on both sides of the screen frame (2); the transmission mechanism (3) comprises a guide rail (301), a sliding seat (302), a rotating arm (304), a rotating frame (305) and a rotating shaft (306); and the guide mechanism (8) comprises a guide plate (801), a guide groove (803) and a guide wheel (802); A processing box (1), the processing box (1) is arranged on the top of the screen frame (2) and is provided with a driving mechanism (4), and a stirring mechanism (5) and an electrocatalytic reaction mechanism (7) are provided inside the processing box (1); The salt separation mechanism (6) includes a booster pump (601) and a nanofiltration membrane (602).

2. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: The guide rail (301) is fixedly connected to the outside of the screen frame (2), and the sliding seat (302) is slidably sleeved on the outside of the guide rail (301), one side of the sliding seat (302) is fixedly connected to a round rod (303), the round rod (303) is rotatably connected to the inside of the rotating arm (304), the rotating arm (304) is slidably connected to the rotating frame (305), and the other end of the rotating arm (304) is hinged to a connecting rod (308), one end of the rotating shaft (306) is fixedly connected to the rotating frame (305), and the outer side of the rotating shaft (306) is slidably sleeved with a moving plate (307), the other end of the connecting rod (308) is hinged to the outside of the moving plate (307), and the top and bottom of the moving plate (307) are fixedly connected to inclined rods (311); The outer side of the rotating shaft (306) is fixedly sleeved with a rotating rod (309), and the outer side of the rotating rod (309) is slidably sleeved with a counterweight plate (310), and the two counterweight plates (310) are respectively slidably sleeved on the outer sides of the corresponding inclined rods (311); The other end of the rotating rod (309) is fixedly connected to a cross rod (313), the oblique rod (311) is slidably sleeved on the outer side of the corresponding cross rod (313), and the two cross rods (313) are fixedly connected to a connecting spring (312) on the side close to each other, and the other end of the connecting spring (312) is fixedly connected to the corresponding counterweight plate (310); An L-shaped frame (314) is rotatably sleeved on the outer side of the rotating shaft (306), and the L-shaped frame (314) is fixedly connected to the outer side of the processing box (1).

3. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: The driving mechanism (4) comprises a driving motor (401), a driving shaft (404) and two driven pulleys (407), the two driven pulleys (407) being fixedly sleeved on the outer sides of the corresponding rotating shafts (306), and a driven gear (403) and a driving pulley (405) being fixedly mounted on the outer sides of the driving shaft (404), and a same synchronous belt (406) being driven and mounted on the driving pulley (405) and the driven pulley (407) on the same side, and the driving motor (401) being fixedly mounted on one side of the processing box (1), and a driving gear (402) being fixedly connected to the output shaft of the driving motor (401), and the driving gear (402) being meshed with the driven gear (403), and the driving shaft (404) being rotatably mounted on the inner walls of both sides of the processing box (1).

4. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: The guide plate (801) is fixedly connected to the outside of the screen frame (2), the guide wheel (802) is rotatably connected to the bottom end of the guide plate (801), and the guide wheel (802) is rollingly connected in the guide groove (803), and the guide groove (803) is fixedly connected to the outside of the processing box (1), and the guide groove (803) includes a horizontal section and an upward section connected to both ends of the horizontal section.

5. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: The electrocatalytic reaction mechanism (7) comprises a mounting frame (702), an ozone generator (701) and a plurality of air outlets (705), wherein the air outlets (705) are fixedly mounted in the mounting frame (702), and the mounting frame (702) is fixedly mounted in the processing box (1), adjacent air outlets (705) are connected with connecting pipes (707), the bottoms of the plurality of air outlets (705) are connected with a plurality of oblique nozzles (706), and the bottom of one of the air outlets (705) is connected with an air inlet pipe (708), the other end of the air inlet pipe (708) is connected with the air outlet of the ozone generator (701), and an electric control valve (709) is provided on the air inlet pipe (708), and an anode electrode plate (703) and a cathode electrode plate (704) are fixedly mounted on the inner wall of the mounting frame (702).

6. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: The water inlet of the booster pump (601) is connected to the treatment box (1), the water outlet of the booster pump (601) is connected to a water outlet pipe (605), the water inlet of the nanofiltration membrane (602) is connected to the water outlet pipe (605), the nanofiltration membrane (602) is arranged in multiple groups, and the water outlets of the multiple nanofiltration membranes (602) are connected to the same drain pipe (604); A fixing plate (603) is fixedly mounted on one side of the processing box (1), and the nanofiltration membrane (602) is fixedly mounted inside the fixing plate (603).

7. The needle textile dyeing wastewater treatment device according to claim 3, characterized in that: The stirring mechanism (5) comprises: an installation box (501), a stirring shaft (504) and a rotating drum (507); the rotating drum (507) and the stirring shaft (504) are both rotatably installed in the installation box (501); the top end of the stirring shaft (504) is fixedly connected to a driven bevel gear (505); the outer side of the rotating drum (507) is fixedly sleeved with a driving bevel gear (506); the driving bevel gear (506) is meshed with the driven bevel gear (505); a connecting hole is opened on one side of the rotating drum (507); one end of the connecting hole is provided with a round chamfer; a plurality of stirring paddles (503) are fixedly installed on the outer side of the stirring shaft (504); A connecting plate (11) adapted to the connecting hole is fixedly sleeved on the outer side of the driving shaft (404), and the stirring mechanism (5) is provided in two groups.

8. The needle textile dyeing wastewater treatment device according to claim 7, characterized in that: The processing box (1) further comprises a switching mechanism (9), the switching mechanism (9) comprising a servo motor (901), a rotating plate (903) and two connecting plates (904), one end of each of the two connecting plates (904) being hinged to the two ends of the rotating plate (903), and the other end of each of the connecting plates (904) being hinged to the outside of the corresponding installation box (501), the servo motor (901) being fixedly mounted on the rear side of the processing box (1), and the rear side of the rotating plate (903) being fixedly connected to a connecting shaft (902), and the other end of the connecting shaft (902) being fixedly connected to the output shaft of the servo motor (901); A plurality of crossbeams (502) are fixedly installed inside the processing box (1), and the installation box (501) is slidably sleeved on the outside of the plurality of crossbeams (502).

9. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: Both sides of the top of the first screen (201) are fixedly connected to connecting rods (203), the other ends of the connecting rods (203) are fixedly connected to first pressure sensors (204), both sides of the top of the screen frame (2) are provided with first circular grooves, and the first pressure sensors (204) are fixedly connected in the corresponding first circular grooves; A second circular groove is provided on the inner wall of the bottom of the screen frame (2), support columns (205) are fixedly connected to both sides of the bottom of the second screen (202), and the bottom ends of the support columns (205) are fixedly connected to second pressure sensors (206), and the second pressure sensors (206) are fixedly installed in the corresponding second circular grooves.

10. The needle textile dyeing wastewater treatment device according to claim 1, characterized in that: A controller (10) is provided on one side of the processing box (1), and the controller (10) is signal-connected to the first pressure sensor (204), the second pressure sensor (206), the booster pump (601), the drive motor (401), the rotary motor and the electric control valve (709).

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