Textile printing and dyeing wastewater treatment device and method

Abstract

The invention relates to the technical field of waste silk recycling, in particular to a textile printing and dyeing wastewater treatment device and method.The textile printing and dyeing wastewater treatment device comprises a treatment pond, a partition plate is fixedly installed in the treatment pond to divide the interior of the treatment pond into a filtering pond and a settling pond, and a waste silk filtering assembly is rotatably installed in the filtering pond; a material guide assembly is rotationally mounted on the bottom surface in the filter tank; a mixing tank is arranged on the outer side, close to the filter tank, of the treatment tank. Through the synergistic effect of the waste silk filtering assembly and the material guiding assembly, solid waste silk in waste water can be efficiently separated and automatically recycled, the rotary type filtering plates automatically switch the working state in the continuous filtering process, after one filtering plate completes filtering operation, the filtering plate can be driven by a servo motor to rotate to the vertical position, and the waste silk in the waste water can be automatically recycled. At the moment, a winding needle in the waste silk recycling assembly moves back and forth along the surface of the filter plate to recycle waste silk left on the surface of the filter plate, the problem that a traditional fixed filter screen is prone to being blocked is solved, and automatic recycling of the waste silk can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste silk recycling, and particularly to a textile printing and dyeing wastewater treatment device and method. Background Art

[0002] As an important traditional industry in China, the textile printing and dyeing industry generates a large amount of industrial wastewater containing cellulose and waste silk every year. The cellulose contained in this wastewater is an important raw material for manufacturing rayon and has extremely high recycling value. However, the current treatment of textile printing and dyeing wastewater mainly focuses on pollutant removal, and the utilization of recyclable resources therein is seriously insufficient.

[0003] In traditional treatment processes, cellulose is often landfilled or incinerated together with sludge, which not only causes waste of resources but also may lead to secondary pollution problems. Existing technologies face many challenges in treating such wastewater: First, the existence forms of cellulose in the wastewater are complex and diverse, including both dissolved modified cellulose and suspended solid waste silk, etc.; Second, existing recycling devices often have single functions, either only capable of treating solid waste silk or only capable of recovering soluble cellulose, lacking a systematic overall solution. In addition, multiple treatment units in traditional processes are independent of each other, not only occupying a large area but also having low treatment efficiency, making it difficult to meet the needs of continuous production of modern textile enterprises. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a textile printing and dyeing wastewater treatment device and method.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A textile printing and dyeing wastewater treatment device, including a treatment tank. A partition is fixedly installed inside the treatment tank to divide the interior of the treatment tank into a filtration tank and a sedimentation tank. Among them, a waste silk filtration component is rotatably installed inside the filtration tank, and a material guiding component is rotatably installed on the inner bottom surface of the filtration tank. A mixing tank is arranged outside the treatment tank near the filtration tank, and a stirring component is arranged inside the mixing tank. A first water delivery pipe is fixedly connected between the stirring component and the outer wall of the sedimentation tank. A waste silk recycling component is also arranged inside the filtration tank, and a raw material recycling component is arranged inside the sedimentation tank; The waste silk filtration component specifically includes a rotatable first rotating rod. A fourth servo motor for driving the first rotating rod to rotate is fixedly installed at the corresponding position of the outer wall of the treatment tank and the end of the first rotating rod. Four filter plates are fixedly installed on the outer wall of the first rotating rod, and a plurality of filter holes are opened on the filter plates; The waste silk recycling component includes a slidable sliding seat. A strip board is detachably connected to the bottom surface of the sliding seat, and multiple winding needles are fixedly connected to the outer wall of the strip board close to the filter plate; The material guiding component includes a rotatable second rotating rod. A stationary guiding plate is fixedly installed on the outer wall of the second rotating rod. A sliding guiding plate is slidably installed at the end of the stationary guiding plate. A fifth servo motor is fixedly installed at the corresponding position of the outer wall of the treatment tank and the end of the second rotating rod, and the output end of the fifth servo motor is fixedly connected to the end of the second rotating rod; The raw material recycling component includes two fixed guide rails fixedly installed inside the sedimentation tank. A plurality of sliding blocks are slidably installed on both fixed guide rails. A metal filter screen is movably connected between the two fixed guide rails. Both sides of the metal filter screen are fixedly connected to a plurality of sliding blocks on the two fixed guide rails respectively, and a driving structure for driving the metal filter screen to rotate is arranged on the outer wall of the treatment tank. A drying bin is fixedly installed on the outer wall of the treatment tank outside the metal filter screen, and multiple scraping plates are fixedly installed on the bottom surface of the drying bin.

[0007] Preferably, a hot air blower is fixedly installed on the outer wall of the drying bin. The hot air blower is communicated with the inside of the drying bin. Two oppositely arranged slide rails are fixedly installed on the bottom surface of the drying bin. A recycling box is slidably installed between the two slide rails, and a plurality of material discharging ports are penetrated through the bottom surface of the drying bin above the recycling box.

[0008] Preferably, a water outlet is penetratingly provided in the upper half of the outer wall of one side of the mixing tank close to the treatment tank. The mixing tank and the treatment tank are internally connected. The stirring assembly includes a rotating shaft rotatably installed inside the mixing tank. A second servo motor is fixedly installed corresponding to the rotating shaft at the top of the mixing tank. The output end of the second servo motor is fixedly connected to the rotating shaft. A first stirring rod is fixedly installed at the end of the rotating shaft. A driving gear is fixedly installed on the outer wall of the rotating shaft. Driven gears meshing with the driving gear are rotatably installed on both sides of the driving gear on the upper surface of the mixing tank. A second stirring rod is fixedly connected to the central position of the driven gear. The second stirring rod is located inside the mixing tank and is used in cooperation with the first stirring rod. A pre-mixing box is further provided on the upper surface of the mixing tank. A feed pipe is fixedly connected to the bottom surface of the pre-mixing box. A valve is movably installed inside the feed pipe. The lower end of the feed pipe is fixedly connected to the upper surface of the mixing tank. A third stirring rod is rotatably installed inside the pre-mixing box. A third servo motor is fixedly installed on the outer wall of the end of the pre-mixing box. The output end of the third servo motor is fixedly connected to the outer wall of the end of the third stirring rod. A support rod is fixedly installed on the bottom surface of the other end of the pre-mixing box.

[0009] Preferably, a plurality of scraping rods are fixedly installed on the outer wall of the lower end of the first stirring rod. Scraping strips are fixedly connected to the ends of the plurality of scraping rods. The scraping strips are arc-shaped and flexible.

[0010] Preferably, a buffer block is fixedly installed inside the sedimentation tank. The buffer block is of a stepped structure.

[0011] Preferably, a second fixing frame is fixedly installed on the upper surface of the treatment tank. A water storage tank is rotatably installed at the upper end of the second fixing frame. A sixth servo motor is fixedly installed on the outer wall of the second fixing frame. The water storage tank is driven to rotate by the sixth servo motor.

[0012] Preferably, a second water delivery pipe is fixedly connected to the outer wall of the sedimentation tank. One end of the second water delivery pipe is fixedly connected to the outer wall of the upper half of the sedimentation tank, and the other end is fixedly connected to the outer wall of one end of the water storage tank away from the sixth servo motor. And the water storage tank rotates with the connection point of the second water delivery pipe and the water storage tank as the center of the circle.

[0013] Preferably, a threaded rod is rotatably connected between the lower ends of the second fixing frame. The sliding seat is threadedly connected to the threaded rod. A limiting rod is fixedly connected between the lower ends of the second fixing frame. And the upper end of the sliding seat is slidably connected to the limiting rod. A seventh servo motor is fixedly installed at the corresponding position of the outer wall of the second fixing frame and the end of the threaded rod. The output end of the seventh servo motor is fixedly connected to the outer wall of the end of the threaded rod.

[0014] Preferably, the driving structure includes a first fixing frame fixedly installed on the outer wall of the sedimentation tank. A transmission roller is rotatably connected between the first fixing frames. The transmission roller drives the metal filter screen to move. A first servo motor is fixedly installed on the outer wall of the first fixing frame. The output end of the first servo motor is fixedly connected to the central position of the transmission roller. A plurality of legs are fixedly installed on the bottom surface of the treatment tank, and the plurality of legs are fixedly connected on both sides of the treatment tank.

[0015] A treatment method for a textile printing and dyeing wastewater treatment device specifically includes the following steps:

[0016] Step 1: Introduce the wastewater generated by textile printing and dyeing into the filtration tank. After the wastewater is filtered by the filter plate above the material guiding assembly, it is guided into the interior of the mixing tank under the action of the static guiding plate and the sliding guiding plate. The waste silk in the wastewater is filtered and left on the surface of the filter plate. Then, the fifth servo motor drives the static guiding plate and the sliding guiding plate to rotate, and the end of the sliding guiding plate scrapes the sundries on the bottom surface of the filter plate. When the static guiding plate is adjusted to the vertical state, the first rotating rod is driven by the fourth servo motor to rotate clockwise by 90 degrees, so that the filter plate with waste silk remaining on its surface rotates to the vertical state. At this time, the sliding seat drives the strip board to slide back and forth along the outer wall of the filter plate, and a plurality of winding needles fixedly installed on the outer wall of the strip board collect the waste silk remaining on the outer wall of the filter plate;

[0017] Step 2: The filtered wastewater is introduced into the interior of the mixing tank through the material guiding assembly. Then, the acidic agent is mixed with the solvent in the pre-mixing box, and then the valve is opened to introduce the solvent mixed with the acidic agent into the interior of the mixing tank. Through the cooperation of the first stirring rod and the second stirring rod inside the mixing tank, the wastewater and the acidic agent are fully mixed;

[0018] Step 3: Under the action of the first water pipe, the wastewater mixed with the acidic agent is input into the interior of the treatment tank. The wastewater flows into the interior of the treatment tank from the first water pipe. After being buffered by the buffer block, it is concentrated at the bottom of the sedimentation tank. The wastewater mixed with the acidic agent precipitates inside the sedimentation tank, and the cellulose flocculent precipitate in the wastewater adheres to the outer wall of the metal filter screen. When the transmission roller rotates, it can drive the metal filter screen to slide along the track of the fixed guide rail. When the metal filter screen with cellulose flocculent precipitate attached moves into the drying chamber, the cellulose flocculent precipitate attached to the metal filter screen can be dried by the hot air blower. Then, the metal filter screen continuously moves along the outer wall of the fixed guide rail. When passing over multiple scraper plates, the dried cellulose flocculent precipitate attached to the metal filter screen can be peeled off from the metal filter screen by the upper ends of the multiple scraper plates. The scraped cellulose flocculent precipitate falls into the interior of the recycling box through the material outlet for recycling;

[0019] Step 4: After the wastewater precipitates inside the sedimentation tank, a part of the supernatant liquid inside the sedimentation tank is pumped into the storage tank through the second water pipe. After the supernatant liquid accumulates in the storage tank, one of the filter plates is rinsed. After the impurities on the filter plate are flushed out by the supernatant liquid, the impurities are carried through the gap between the lower end of the material guiding assembly and the inner wall of the bottom of the treatment tank and enter the inside of the mixing tank;

[0020] Step 5: An outlet pipe is also provided on the outer wall of the treatment tank where the second water pipe is connected. The outlet pipe can export the wastewater after the cellulose is recycled.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] Through the synergistic effect of the waste silk filtering assembly and the material guiding assembly, the present invention can efficiently separate and automatically recycle the solid waste silk in the wastewater. The rotary filter plate automatically switches its working state during the continuous filtering process. When one filter plate completes the filtering operation, it can be rotated to a vertical position by driving with a servo motor. At this time, the winding needle in the waste silk recycling assembly moves back and forth along the surface of the filter plate to recycle the waste silk remaining on the surface of the filter plate, which not only solves the problem of easy blockage of traditional fixed filters, but also realizes the automatic recycling of waste silk.

[0023] By setting up the raw material recycling assembly, the metal filter screen moves cyclically along the fixed guide rail driven by the servo motor, enabling it to continuously adsorb the cellulose flocs in the wastewater. When the filter screen carrying the cellulose flocs enters the drying chamber, the hot air generated by the hot air blower will quickly dry and solidify the cellulose layer. Subsequently, the specially made serrated scraper can easily peel off the dried cellulose flakes from the filter screen, and cellulose with high product purity and low moisture content is obtained through physical separation, realizing the recycling and reuse of the cellulose raw material in the wastewater. The entire device realizes the cooperation of each component through the control system, realizing the full automation operation from wastewater feeding to waste silk and cellulose recycling.

[0024] By setting up the storage tank, the supernatant liquid on the upper layer of the sedimentation tank is transported to the storage tank through the second water pipeline. The wastewater after preliminary treatment is used to rinse the filtering assembly, making the filtering assembly cleaner and ensuring the filtering effect of the filter plate on waste silk during the next use, and avoiding the blockage of the filter plate after long-term use and affecting the filtering efficiency. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Schematic diagram of the overall structure in the embodiment of the present invention;

[0027] Figure 2 Front schematic diagram of the overall structure in the embodiment of the present invention;

[0028] Figure 3 Cross-sectional schematic diagram of the overall structure in the embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the waste silk filtering component in the embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the raw material recycling component in the embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the internal structure of the mixing tank in the embodiment of the present invention;

[0032] Figure 7 In the embodiment of the present invention Figure 3 Schematic diagram of the partial enlarged structure at position A;

[0033] Figure 8 In the embodiment of the present invention Figure 3 Schematic diagram of the partial enlarged structure at position B;

[0034] Figure 9 In the embodiment of the present invention Figure 3 Schematic diagram of the partial enlarged structure at position C;

[0035] Figure 10 In the embodiment of the present invention Figure 5 Schematic diagram of the partial enlarged structure at position D;

[0036] Figure 11 Installation schematic diagram of the water outlet pipe structure in the embodiment of the present invention.

[0037] In the figure: 1, treatment tank; 2, partition board; 3, mixing tank; 4, first water delivery pipe; 5, second water delivery pipe; 6, water storage bin; 7, raw material recycling component; 701, fixed guide rail; 702, sliding block; 703, metal filter screen; 704, drying bin; 705, hot air blower; 706, scraper; 707, recycling box; 708, blanking port; 709, slide rail; 710, driving roller; 711, first servo motor; 712, first fixing frame; 8, buffer block; 9, support leg; 10, water outlet pipe; 11, stirring component; 1101, rotating shaft; 1102, second servo motor; 1103, driving gear; 1104, first stirring rod; 1105, second stirring rod; 1106, driven gear; 1107, feed pipe; 1108, valve; 1109, pre-mixing box; 1110, third servo motor; 1111, support rod; 1112, third stirring rod; 1113, scraping rod; 1114, scraping strip; 12, waste wire filtering component; 1201, first rotating rod; 1202, fourth servo motor; 1203, filter plate; 1204, filter hole; 13, material guiding component; 1301, static guiding plate; 1302, sliding guiding plate; 1303, second rotating rod; 1304, fifth servo motor; 14, water inlet; 15, waste wire recycling component; 1501, sliding seat; 1502, threaded rod; 1503, limiting rod; 1504, strip board; 1505, winding needle. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0039] Refer to Figures 1-11 , a textile printing and dyeing wastewater treatment device, including a treatment tank 1, a partition board 2 is fixedly installed inside the treatment tank 1 to divide the interior of the treatment tank 1 into a filtering tank and a sedimentation tank. Among them, a waste wire filtering component 12 is rotatably installed inside the filtering tank, and a material guiding component 13 that cooperates with the waste wire filtering component 12 is rotatably installed on the bottom surface of the side of the filtering tank away from the sedimentation tank. A mixing tank 3 is arranged outside the treatment tank 1 close to the filtering tank. A stirring component 11 is arranged inside the mixing tank 3. A first water delivery pipe 4 is fixedly connected between the stirring component 11 and the outer wall of the sedimentation tank. A waste wire recycling component 15 is also arranged inside the filtering tank on one side of the waste wire filtering component 12. A raw material recycling component 7 is arranged inside the sedimentation tank;

[0040] Among them, the waste silk filtering component 12 specifically includes a first rotating rod 1201. Both ends of the first rotating rod 1201 are rotatably connected to the inner wall of the treatment tank 1. A fourth servo motor 1202 is fixedly installed at a position corresponding to the end of the first rotating rod 1201 on the outer wall of the treatment tank 1. The output end of the fourth servo motor 1202 is fixedly connected to the end of the first rotating rod 1201. Four filter plates 1203 are fixedly installed on the outer wall of the first rotating rod 1201. A plurality of filter holes 1204 are formed in the filter plates 1203; the waste silk recycling component 15 is arranged outside one of the vertically arranged filter plates 1203. The waste silk recycling component 15 includes a slidable sliding seat 1501. The bottom surface of the sliding seat 1501 is detachably connected to a strip plate 1504. A plurality of winding needles 1505 are fixedly connected to the outer wall of the strip plate 1504 close to the filter plate 1203. By driving the strip plate 1504 to slide along the outer wall of the filter plate 1203 through the sliding seat 1501, the waste silk filtered out on the outer wall of the filter plate 1203 can be collected and wound around the outer walls of the plurality of winding needles 1505;

[0041] The feeding component 13 includes a second rotating rod 1303 rotatably connected to the inner walls on both sides of the treatment tank 1. A static guide plate 1301 is fixedly installed on the outer wall of the second rotating rod 1303. A sliding guide plate 1302 is slidably installed at the end of the static guide plate 1301. A fifth servo motor 1304 is fixedly installed at a position corresponding to the end of the second rotating rod 1303 on the outer wall of the treatment tank 1, and the output end of the fifth servo motor 1304 is fixedly connected to the end of the second rotating rod 1303; A plurality of springs are arranged inside the second rotating rod 1303, and both ends of the springs are fixedly connected to the inner wall of the second rotating rod 1303 and the end of the sliding guide plate 1302 respectively;

[0042] The raw material recycling component 7 includes two fixed guide rails 701 fixedly installed inside the sedimentation tank. A plurality of sliding blocks 702 are slidably installed on both fixed guide rails 701. A metal filter screen 703 is movably connected between the two fixed guide rails 701. The metal filter screen 703 is a closed structure. Both sides of the metal filter screen 703 are fixedly connected to a plurality of sliding blocks 702 on the two fixed guide rails 701, and a driving structure for driving the metal filter screen 703 to rotate is arranged on the outer wall of the treatment tank 1. A drying bin 704 is fixedly installed on the outer wall of the treatment tank 1 outside the metal filter screen 703. A plurality of scraping plates 706 are fixedly installed on the bottom surface of the drying bin 704. The upper end of the scraping plate 706 is serrated, and the outer wall of the metal filter screen 703 is processed by the upper end of the scraping plate 706;

[0043] A large amount of wastewater is generated in the textile printing and dyeing production line. The wastewater contains some waste silk and recyclable cellulose. When recycling cellulose, it can be recycled by acid precipitation method, salting-out method or organic solvent precipitation method. Taking the acid precipitation method for recycling waste silk and cellulose in the wastewater as an example, there are four filter plates 1203 inside the filter tank in the treatment tank 1 of the device. The four filter plates 1203 can be switched between horizontal and vertical positions by rotation. The wastewater is introduced from above one of the filter plates 1203 close to the mixing tank 3. The wastewater is filtered under the action of the filter plate 1203, so that waste silk and the like are left on the surface of the filter plate 1203. At this time, the guide component 13 arranged below the filter plate 1203 is inclined. The filtered wastewater is introduced into the mixing tank 3 under the action of the guide component 13 and mixed with acidic agents (such as sulfuric acid and hydrochloric acid). The acidic agents reduce the pH value of the wastewater, protonate the carboxylic acid groups, reduce the solubility of cellulose, and form flocculent precipitates. Then, under the action of the first water pipe 4, the mixed liquid of wastewater and cellulose flocculent precipitates is input into the sedimentation tank in the treatment tank 1 for sedimentation. The first water pipe 4 is connected to a water pump, and the end of the first water pipe 4 is connected to the lower end of the outer wall of the mixing tank 3. When the wastewater mixed with acidic agents enters the treatment tank 1, the cellulose flocculent precipitates in the wastewater adhere to the surface of the metal filter screen 703 in a static state, and the metal filter screen 703 can move along the track of the fixed guide rail 701 under the action of the driving structure. When the metal filter screen 703 moves, the part with cellulose flocculent precipitates attached can be moved outside the sedimentation tank for recycling. When the introduction of wastewater into the treatment tank 1 stops, the waste silk filtered out by the filter plate 1203 is driven by the fifth servo motor 1304 to rotate the static guide plate 1301. The sliding guide plate 1302 arranged at the end of the static guide plate 1301 can slide. The spring arranged inside the static guide plate 1301 makes the end of the sliding guide plate 1302 always contact with the bottom surface of the filter plate 1203. Then, when the static guide plate 1301 rotates, the bottom surface of the filter plate 1203 can be cleaned through the end of the sliding guide plate 1302. When the static guide plate 1301 rotates to the vertical state, it can make way for the rotation of the four filter plates 1203. Then, under the action of the fourth servo motor 1202, the filter plate 1203 with waste silk filtered on the outer wall can be rotated clockwise to the vertical state. Then, the strip plate 1504 is driven by the sliding seat 1501 to slide along the surface of the filter plate 1203, and the filtered waste silk can be recycled. It is worth mentioning here that there are gaps matching the width of the strip plate 1504 between the ends of the multiple filter plates 1203 and the inner wall of the treatment tank 1. Therefore, the setting of the strip plate 1504 does not affect the normal rotation of the filter plate 1203. The upper end of the strip plate 1504 can be disassembled from the sliding seat 1501. After the user disassembles the strip plate 1504, the recycled waste silk can be taken off and reused.Electrical components such as the electric telescopic rod and the servo motor in the device are all controlled and operated by a PLC controller.

[0044] As a technical optimization solution of the present invention, a hot air blower 705 is fixedly installed on the outer wall of the drying bin 704. The hot air blower 705 is communicated with the inside of the drying bin 704. Two oppositely arranged slide rails 709 are fixedly installed on the bottom surface of the drying bin 704. A recycling box 707 is slidably installed between the two slide rails 709. A plurality of material discharge openings 708 are formed through the bottom surface of the drying bin 704 above the recycling box 707; by continuously inputting hot air into the inside of the drying bin 704 through the hot air blower 705, the cellulose flocculent precipitate attached to the outer wall of the metal filter screen 703 can be accelerated to agglomerate, and then it is convenient for the scraper 706 to scrape off the agglomerated cellulose flocculent precipitate on the metal filter screen 703. The cellulose flocculent precipitate peeled off from the metal filter screen 703 falls into the inside of the recycling box 707 through the material discharge opening 708 for recycling. The recycling box 707 is located inside the two slide rails 709 and can be taken out after sliding outwards.

[0045] As a technical optimization solution of the present invention, a water outlet 14 is penetrated through the upper half of the outer wall of one side of the mixing tank 3 close to the treatment tank 1. The mixing tank 3 is internally communicated with the treatment tank 1. The stirring assembly 11 includes a rotating shaft 1101 rotatably installed inside the mixing tank 3. A second servo motor 1102 is fixedly installed corresponding to the rotating shaft 1101 at the top of the mixing tank 3. The output end of the second servo motor 1102 is fixedly connected to the rotating shaft 1101. A first stirring rod 1104 is fixedly installed at the end of the rotating shaft 1101. A driving gear 1103 is fixedly installed on the outer wall of the rotating shaft 1101. Driven gears 1106 meshing with the driving gear 1103 are rotatably installed on both sides of the driving gear 1103 on the upper surface of the mixing tank 3. A second stirring rod 1105 is fixedly connected to the central position of the driven gear 1106. The second stirring rod 1105 is located inside the mixing tank 3 and is used in cooperation with the first stirring rod 1104. A premixing box 1109 is further arranged on the upper surface of the mixing tank 3. A feed pipe 1107 is fixedly connected to the bottom surface of the premixing box 1109. A valve 1108 is movably installed inside the feed pipe 1107. The lower end of the feed pipe 1107 is fixedly connected to the upper surface of the mixing tank 3. A third stirring rod 1112 is rotatably installed inside the premixing box 1109. A third servo motor 1110 is fixedly installed on the outer wall of the end of the premixing box 1109. The output end of the third servo motor 1110 is fixedly connected to the outer wall of the end of the third stirring rod 1112. A support rod 1111 is fixedly installed on the bottom surface of the other end of the premixing box 1109. The support rod 1111 can support the other end of the premixing box 1109. The acidic reagent and the soluble solvent (such as water) are premixed in the premixing box 1109 in advance and are stirred and mixed evenly by the third stirring rod 1112 arranged inside the premixing box 1109. The premixed acidic reagent is added into the mixing tank 3 and mixed with the wastewater. Under the meshing action between the driving gear 1103 and the driven gear 1106, the first stirring rod 1104 and the second stirring rod 1105 can be synchronously driven by the second servo motor 1102 to rotate simultaneously to mix the acidic reagent and the wastewater, thereby accelerating the reaction rate between the acidic reagent and the carboxylic acid groups in the wastewater. The wastewater after being mixed with the reagent is input into the sedimentation tank through the action of the first water pipe 4 for static precipitation.

[0046] As a technical optimization solution of the present invention, a plurality of scraping rods 1113 are fixedly installed on the outer wall of the lower end of the first stirring rod 1104. Scraping strips 1114 are fixedly connected to the ends of the plurality of scraping rods 1113. The scraping strips 1114 are arc-shaped and flexible. When the first stirring rod 1104 rotates, the plurality of scraping rods 1113 rotate synchronously. At the same time, the scraping strips 1114 arranged at the ends of the scraping rods 1113 are deformed according to the shape of the bottom surface of the mixing tank 3 during rotation. The bottom surface of the mixing tank 3 can be prevented from precipitating through the scraping rods 1113 and the scraping strips 1114, so that the mixed liquid inside the mixing tank 3 is always in a suspension state after reaction.

[0047] As a technical optimization solution of the present invention, a buffer block 8 is fixedly installed inside the sedimentation tank. The buffer block 8 has a stepped structure. The outer wall of the lower end of the buffer block 8 is inclined, and the overall cross-section is of a stepped shape. The water outlet of the first water delivery pipe 4 is arranged at the highest position of the buffer block 8. When the wastewater is input from the first water delivery pipe 4 into the sedimentation tank, the buffer block 8 can reduce the gravitational potential energy of the wastewater, thereby reducing the fluctuation of the water flow inside the sedimentation tank, and making it more convenient for the cellulose flocculent precipitation in the wastewater inside the sedimentation tank.

[0048] As a technical optimization solution of the present invention, a second fixing frame is fixedly installed on the upper surface of the treatment tank 1. A water storage tank 6 is rotatably installed at the upper end of the second fixing frame. A sixth servo motor is fixedly installed on the outer wall of the second fixing frame to drive the water storage tank 6 to rotate through the sixth servo motor. The inside of the water storage tank 6 can be used to store the supernatant after the wastewater has been sedimented. After the filter plate 1203 filters the waste filaments in the wastewater, the bottom outer wall can be scraped and cleaned through the material guiding component 13. Then, when the filter plate 1203 rotates clockwise to the vertical state, the waste filaments on the outer wall are recycled through the winding needle 1505. Then the filter plate 1203 continues to rotate clockwise to the horizontal state, and the supernatant of the wastewater stored in the water storage tank 6 can be used to wash the multiple filter holes 1204 opened on the filter plate 1203. And during the washing process, the water storage tank 6 is driven to swing through the sixth servo motor, so that the washing range of the supernatant of the wastewater in the water storage tank 6 is larger. The setting of the water storage tank 6 can make the filter plate 1203 cleaner after use.

[0049] As a technical optimization solution of the present invention, a second water delivery pipe 5 is fixedly connected to the outer wall of the sedimentation tank. One end of the second water delivery pipe 5 is fixedly connected to the outer wall of the upper half of the sedimentation tank, and the other end is fixedly connected to the outer wall of the water storage tank 6 away from the sixth servo motor, and the water storage tank 6 rotates with the connection point of the second water delivery pipe 5 and the water storage tank 6 as the center; the second water delivery pipe 5 can pump out the supernatant inside the sedimentation tank. The other end of the second water delivery pipe 5 is arranged at the center of rotation of the water storage tank 6. Then, no matter what angle the water storage tank 6 rotates to, the supernatant of the wastewater can be input into the water storage tank 6 through the second water delivery pipe 5.

[0050] As a technical optimization solution of the present invention, a threaded rod 1502 is rotatably connected between the lower ends of the second fixing frames. The sliding seat 1501 is threadedly connected to the threaded rod 1502. A limiting rod 1503 is fixedly connected between the lower ends of the second fixing frames, and the upper end of the sliding seat 1501 is slidably connected to the limiting rod 1503. A seventh servo motor is fixedly installed at a position corresponding to the end of the threaded rod 1502 on the outer wall of the second fixing frame, and the output end of the seventh servo motor is fixedly connected to the outer wall of the end of the threaded rod 1502. By driving the threaded rod 1502 to rotate through the seventh servo motor, and the upper end of the sliding seat 1501 being limited by the limiting rod 1503, under the action of the threaded transmission between the threaded rod 1502 and the sliding seat 1501, the sliding seat 1501 can stably slide along the threaded rod 1502, and further the strip plate 1504 slides along the outer wall of the filter plate 1203.

[0051] As a technical optimization solution of the present invention, the driving structure includes a first fixing frame 712 fixedly installed on the outer wall of the sedimentation tank. A transmission roller 710 is rotatably connected between the first fixing frames 712. The transmission roller 710 drives the metal filter screen 703 to move. A first servo motor 711 is fixedly installed on the outer wall of the first fixing frame 712, and the output end of the first servo motor 711 is fixedly connected to the central position of the transmission roller 710. A plurality of legs 9 are fixedly installed on the bottom surface of the treatment tank 1, and the plurality of legs 9 are fixedly connected on both sides of the treatment tank 1. The first servo motor 711 drives the transmission roller 710 to rotate. The outer wall of the transmission roller 710 is multi-toothed. When the transmission roller 710 rotates, the teeth on its outer wall are inserted into the pores on the metal filter screen 703, thereby driving the metal filter screen 703 to move along the track of the fixed guide rail 701.

[0052] A treatment method for a textile printing and dyeing wastewater treatment device specifically includes the following steps:

[0053] Step 1: Introduce the wastewater generated by textile printing and dyeing into the filter tank. After the wastewater is filtered by the filter plate 1203 above the material guiding assembly 13, it is introduced into the interior of the mixing tank 3 under the action of the static guiding plate 1301 and the sliding guiding plate 1302. The waste silk in the wastewater is filtered and left on the surface of the filter plate 1203. Then, the fifth servo motor 1304 drives the static guiding plate 1301 and the sliding guiding plate 1302 to rotate, and the end of the sliding guiding plate 1302 scrapes the debris on the bottom surface of the filter plate 1203. After the static guiding plate 1301 is adjusted to the vertical state, the fourth servo motor 1202 drives the first rotating rod 1201 to rotate clockwise by ninety degrees, so that the filter plate 1203 with waste silk remaining on its surface rotates to the vertical state. At this time, the sliding seat 1501 drives the strip plate 1504 to slide back and forth along the outer wall of the filter plate 1203, and a plurality of winding needles 1505 fixedly installed on the outer wall of the strip plate 1504 collect the waste silk remaining on the outer wall of the filter plate 1203.

[0054] Step 2: The filtered wastewater is introduced into the interior of the mixing tank 3 through the material guiding assembly 13. Then, after the acidic agent is mixed with the solvent inside the pre-mixing box 1109, the valve 1108 is opened to introduce the solvent mixed with the acidic agent into the interior of the mixing tank 3. Through the cooperation of the first stirring rod 1104 and the second stirring rod 1105 inside the mixing tank 3, the wastewater and the acidic agent are fully mixed;

[0055] Step 3: Under the action of the first water delivery pipe 4, the wastewater mixed with the acidic agent is input into the interior of the treatment tank 1. The wastewater flows into the interior of the treatment tank 1 from the first water delivery pipe 4. After being buffered by the buffer block 8, it is concentrated at the bottom of the sedimentation tank. The wastewater mixed with the acidic agent precipitates inside the sedimentation tank. The cellulose flocculent precipitate in the wastewater adheres to the outer wall of the metal filter screen 703. When the driving roller 710 rotates, it can drive the metal filter screen 703 to slide along the track of the fixed guide rail 701. When the metal filter screen 703 with the cellulose flocculent precipitate attached moves into the interior of the drying bin 704, the cellulose flocculent precipitate attached to the metal filter screen 703 can be dried by the hot air blower 705. Then, the metal filter screen 703 continuously moves along the outer wall of the fixed guide rail 701. When passing above multiple scraping plates 706, the dried cellulose flocculent precipitate attached to the metal filter screen 703 can be peeled off from the metal filter screen 703 by the upper ends of the multiple scraping plates 706. The scraped cellulose flocculent precipitate falls into the interior of the recycling box 707 through the discharge port 708 for recycling;

[0056] Step 4: After the wastewater precipitates inside the sedimentation tank, a part of the upper clear liquid inside the sedimentation tank is pumped into the interior of the water storage bin 6 through the second water delivery pipe 5. After the upper clear liquid accumulates in the water storage bin 6, one of the filter plates 1203 is rinsed. After the impurities on the filter plate 1203 are washed out by the upper clear liquid, the upper clear liquid carries the impurities and enters the interior of the mixing tank 3 through the gap between the lower end of the material guiding assembly 13 and the inner wall of the bottom of the treatment tank 1;

[0057] Step 5: An outlet pipe 10 is further provided on the outer wall of the second water delivery pipe 5 outside the treatment tank 1. The outlet pipe 10 can export the wastewater after cellulose recycling to the outside.

[0058] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

[0059] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A textile printing and dyeing wastewater treatment device, comprising a treatment tank (1), characterized in that , a partition plate (2) is fixedly installed inside the treatment tank (1) to divide the interior of the treatment tank (1) into a filtration tank and a sedimentation tank. Inside the filtration tank, a waste silk filtration component (12) is rotatably installed, and a material guiding component (13) is rotatably installed on the inner bottom surface of the filtration tank. A mixing tank (3) is arranged outside the treatment tank (1) near the filtration tank. A stirring component (11) is arranged inside the mixing tank (3). A first water pipe (4) is fixedly connected between the stirring component (11) and the outer wall of the sedimentation tank. A waste silk recycling component (15) is also arranged inside the filtration tank, and a raw material recycling component (7) is arranged inside the sedimentation tank; The waste silk filtration component (12) specifically includes a rotatable first rotating rod (1201). A fourth servo motor (1202) for driving the first rotating rod (1201) to rotate is fixedly installed at a position corresponding to the end of the first rotating rod (1201) on the outer wall of the treatment tank (1). Four filter plates (1203) are fixedly installed on the outer wall of the first rotating rod (1201), and a plurality of filter holes (1204) are formed in the filter plates (1203); The waste silk recycling component (15) includes a slidable sliding seat (1501). A strip board (1504) is detachably connected to the bottom surface of the sliding seat (1501). A plurality of winding needles (1505) are fixedly connected to the outer wall of the strip board (1504) on the side close to the filter plate (1203); The material guiding component (13) includes a rotatable second rotating rod (1303). A stationary guiding plate (1301) is fixedly installed on the outer wall of the second rotating rod (1303). A sliding guiding plate (1302) is slidably installed at the end of the stationary guiding plate (1301). A fifth servo motor (1304) is fixedly installed at a position corresponding to the end of the second rotating rod (1303) on the outer wall of the treatment tank (1), and the output end of the fifth servo motor (1304) is fixedly connected to the end of the second rotating rod (1303); The raw material recycling component (7) includes two fixed guide rails (701) fixedly installed inside the sedimentation tank. A plurality of sliding blocks (702) are slidably installed on both fixed guide rails (701). A metal filter screen (703) is movably connected between the two fixed guide rails (701). Both sides of the metal filter screen (703) are fixedly connected to a plurality of sliding blocks (702) on the two fixed guide rails (701), and a driving structure for driving the metal filter screen (703) to rotate is arranged on the outer wall of the treatment tank (1). A drying bin (704) is fixedly installed on the outer wall of the treatment tank (1) outside the metal filter screen (703). A plurality of scraping plates (706) are fixedly installed on the bottom surface of the drying bin (704).

2. The textile printing and dyeing wastewater treatment device according to claim 1, characterized in that, A hot air blower (705) is fixedly installed on the outer wall of the drying bin (704). The hot air blower (705) is communicated with the inside of the drying bin (704). Two relatively arranged slide rails (709) are fixedly installed on the bottom surface of the drying bin (704). A recycling box (707) is slidably installed between the two slide rails (709), and a plurality of material discharging ports (708) are formed through the bottom surface of the drying bin (704) above the recycling box (707).

3. A textile printing and dyeing wastewater treatment device according to claim 2, characterized in that, On the upper half of the outer wall of the mixing tank (3) close to the treatment tank (1), a water outlet (14) is penetrated and opened. The mixing tank (3) is internally communicated with the treatment tank (1). The stirring assembly (11) includes a rotating shaft (1101) rotatably installed inside the mixing tank (3). A second servo motor (1102) is fixedly installed corresponding to the rotating shaft (1101) at the top of the mixing tank (3). The output end of the second servo motor (1102) is fixedly connected to the rotating shaft (1101). A first stirring rod (1104) is fixedly installed at the end of the rotating shaft (1101). A driving gear (1103) is fixedly installed on the outer wall of the rotating shaft (1101). On both sides of the driving gear (1103) on the upper surface of the mixing tank (3), driven gears (1106) meshed with the driving gear (1103) are rotatably installed. A second stirring rod (1105) is fixedly connected to the central position of the driven gear (1106). The second stirring rod (1105) is located inside the mixing tank (3) and is used in cooperation with the first stirring rod (1104). A pre-mixing box (1109) is further provided on the upper surface of the mixing tank (3). A feed pipe (1107) is fixedly connected to the bottom surface of the pre-mixing box (1109). A valve (1108) is movably installed inside the feed pipe (1107). The lower end of the feed pipe (1107) is fixedly connected to the upper surface of the mixing tank (3). A third stirring rod (1112) is rotatably installed inside the pre-mixing box (1109). A third servo motor (1110) is fixedly installed on the outer wall at the end of the pre-mixing box (1109). The output end of the third servo motor (1110) is fixedly connected to the outer wall at the end of the third stirring rod (1112). A support rod (1111) is fixedly installed on the bottom surface at the other end of the pre-mixing box (1109).

4. A textile printing and dyeing wastewater treatment device according to claim 3, characterized in that, A plurality of scraping rods (1113) are fixedly installed on the outer wall at the lower end of the first stirring rod (1104). Scraping strips (1114) are fixedly connected to the ends of the plurality of scraping rods (1113). The scraping strips (1114) are arc-shaped and flexible.

5. A textile printing and dyeing wastewater treatment device according to claim 4, characterized in that, A buffer block (8) is fixedly installed inside the sedimentation tank. The buffer block (8) is of a stepped structure.

6. The textile printing and dyeing wastewater treatment device according to claim 5, characterized in that, A second fixing frame is fixedly installed on the upper surface of the treatment tank (1). A water storage tank (6) is rotatably installed at the upper end of the second fixing frame. A sixth servo motor is fixedly installed on the outer wall of the second fixing frame. The water storage tank (6) is driven to rotate by the sixth servo motor.

7. The textile printing and dyeing wastewater treatment device according to claim 6, wherein A second water delivery pipe (5) is fixedly connected to the outer wall of the sedimentation tank. One end of the second water delivery pipe (5) is fixedly connected to the upper half of the outer wall of the sedimentation tank, and the other end is fixedly connected to the outer wall of one end of the water storage tank (6) away from the sixth servo motor. And the water storage tank (6) rotates with the connection point of the second water delivery pipe (5) and the water storage tank (6) as the center of the circle.

8. A textile printing and dyeing wastewater treatment device according to claim 7, characterized in that, A threaded rod (1502) is rotatably connected between the lower ends of the second fixing frame. A sliding seat (1501) is threadedly connected to the threaded rod (1502). A limiting rod (1503) is fixedly connected between the lower ends of the second fixing frame. The upper end of the sliding seat (1501) is slidably connected to the limiting rod (1503). A seventh servo motor is fixedly installed at a position corresponding to the end of the threaded rod (1502) on the outer wall of the second fixing frame. The output end of the seventh servo motor is fixedly connected to the outer wall of the end of the threaded rod (1502).

9. The textile printing and dyeing wastewater treatment device according to claim 8, characterized in that, The driving structure includes a first fixing frame (712) fixedly installed on the outer wall of the sedimentation tank. A transmission roller (710) is rotatably connected between the first fixing frames (712). The transmission roller (710) drives the metal filter screen (703) to move. A first servo motor (711) is fixedly installed on the outer wall of the first fixing frame (712). The output end of the first servo motor (711) is fixedly connected to the central position of the transmission roller (710). A plurality of support legs (9) are fixedly installed on the bottom surface of the treatment tank (1), and the plurality of support legs (9) are fixedly connected on both sides of the treatment tank (1).

10. The treatment method of a textile printing and dyeing wastewater treatment device according to claim 9, characterized in that, Specifically, it includes the following steps: Step 1: The wastewater generated from textile printing and dyeing is introduced into the filter tank. After the wastewater is filtered by the filter plate (1203) above the material guiding assembly (13), it is introduced into the interior of the mixing tank (3) under the action of the static guiding plate (1301) and the sliding guiding plate (1302). The waste silk in the wastewater is filtered and left on the surface of the filter plate (1203). Then, the fifth servo motor (1304) drives the static guiding plate (1301) and the sliding guiding plate (1302) to rotate. The end of the sliding guiding plate (1302) scrapes the sundries on the bottom surface of the filter plate (1203). After the static guiding plate (1301) is adjusted to the vertical state, the first rotating rod (1201) is driven by the fourth servo motor (1202) to rotate clockwise by 90 degrees, so that the filter plate (1203) with waste silk remaining on its surface rotates to the vertical state. At this time, the sliding seat (1501) drives the strip plate (1504) to slide back and forth along the outer wall of the filter plate (1203). The waste silk remaining on the outer wall of the filter plate (1203) is collected by a plurality of winding needles (1505) fixedly installed on the outer wall of the strip plate (1504). Step 2: The filtered wastewater is introduced into the interior of the mixing tank (3) through the material guiding assembly (13). Then, the acidic agent is mixed with the solvent in the pre-mixing box (1109), and then the valve (1108) is opened to introduce the solvent mixed with the acidic agent into the interior of the mixing tank (3). Through the cooperation of the first stirring rod (1104) and the second stirring rod (1105) inside the mixing tank (3), the wastewater and the acidic agent are fully mixed. Step 3: Under the action of the first water delivery pipe (4), the wastewater mixed with acidic agent is input into the interior of the treatment tank (1). The wastewater flows into the interior of the treatment tank (1) from the first water delivery pipe (4), and after being buffered by the buffer block (8), it concentrates at the bottom of the sedimentation tank. The wastewater mixed with acidic agent precipitates inside the sedimentation tank, and the cellulose flocculent precipitate in the wastewater adheres to the outer wall of the metal filter screen (703). When the driving roller (710) rotates, it can drive the metal filter screen (703) to slide along the track of the fixed guide rail (701). When the metal filter screen (703) with cellulose flocculent precipitate attached moves into the interior of the drying bin (704), the cellulose flocculent precipitate attached to the metal filter screen (703) can be dried by the hot air blower (705). Then, the metal filter screen (703) continues to move along the outer wall of the fixed guide rail (701). When passing above multiple scraper plates (706), the dried cellulose flocculent precipitate attached to the metal filter screen (703) can be peeled off from the metal filter screen (703) through the upper ends of the multiple scraper plates (706). The scraped cellulose flocculent precipitate falls into the interior of the recycling box (707) through the material discharge port (708) for recycling; Step 4: After the wastewater precipitates inside the sedimentation tank, a part of the upper clear liquid inside the sedimentation tank is pumped into the interior of the water storage tank (6) through the second water delivery pipe (5). After accumulating in the water storage tank (6), the upper clear liquid flushes one of the filter plates (1203). After flushing the impurities on the filter plate (1203), the upper clear liquid carries the impurities and enters the interior of the mixing tank (3) through the gap between the lower end of the material guiding assembly (13) and the inner wall of the bottom of the treatment tank (1); Step 5: An outlet pipe (10) is also arranged on the outer wall of the second water delivery pipe (5) connected to the outside of the treatment tank (1). The outlet pipe (10) can lead out the wastewater after cellulose recycling to the outside.

Images