Printing and dyeing sewage treatment device and method

Abstract

The invention relates to the technical field of sewage treatment, in particular to a printing and dyeing sewage treatment device and method, a treatment box is internally provided with a stirring assembly and a chemical adding assembly, the chemical adding assembly comprises a chemical adding pipe, the stirring assembly is provided with a first driving part, and the first driving part is used for driving the chemical adding pipe to do circumferential swing motion; flow stirring assemblies located on the two sides of the stirring assembly are arranged in the treatment box, and when the stirring assembly works, the flow stirring assemblies are driven to stir sewage in the treatment box; aeration assemblies located on the two sides of the stirring assembly are arranged on the bottom wall of the treatment box, a second driving part is arranged on the stirring assembly, and the aeration assemblies reciprocate in the treatment box through the second driving part. According to the sewage treatment device, the stirring assembly works to drive the dosing pipe to do circumferential swinging motion, and meanwhile, the stirring assembly works to drive the flow stirring assembly to stir sewage on the two sides of the stirring assembly, so that the sewage in the treatment box can be well stirred, and the mixing effect of an activated sludge mixed solution and the sewage is better.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a printing and dyeing sewage treatment device and method. Background Art

[0002] In the textile processing, printing and dyeing is an indispensable process. The main medium of printing and dyeing is water, which will produce a large amount of sewage. In addition to the large amount of water, printing and dyeing sewage also contains a large amount of dyes, slurries, additives, oils, acids and alkalis, fiber impurities, etc. Therefore, the treatment of printing and dyeing sewage before discharge is particularly important. At present, in the treatment of printing and dyeing sewage, sewage is mixed with activated sludge with a large number of microorganisms attached, stirred and aerated to decompose the organic pollutants in the sewage.

[0003] In the prior art, when carrying out biological degradation of sewage, it is usually necessary to stir the sewage and activated sludge so that the two are fully mixed. At the same time, aeration in the sewage can make the mixing of the three better, so as to improve the subsequent treatment effect of the activated sludge on the sewage. However, the existing mixing and stirring is mostly carried out in a biological pool. Due to the large volume of the biological pool, the stirring effect of the sewage and activated sludge therein is not good, so it needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a printing and dyeing wastewater treatment device and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A printing and dyeing wastewater treatment device comprises a treatment box, a stirring assembly is arranged at the middle of the treatment box, and dosing assemblies are arranged on both sides of the stirring assembly, the dosing assembly comprises a dosing pipe, a first driving member is arranged on the stirring assembly, and the first driving member is used to drive the dosing pipe to perform a circular swinging motion; The treatment box is provided with a flow stirring assembly located on both sides of the stirring assembly. When the stirring assembly is working, it drives the flow stirring assembly to stir the sewage in the treatment box; The bottom wall of the treatment box is provided with an aeration assembly located on both sides of the stirring assembly. The stirring assembly is provided with a second driving member, and the second driving member is used for the aeration assembly to move back and forth in the treatment box.

[0006] Furthermore, the upper end of the processing box is opened, and a cover plate is provided at the upper end and at the center of the processing box; the stirring assembly includes a stirring shaft rotatably arranged on the cover plate, and stirring rods are distributed on the stirring shaft.

[0007] Furthermore, a first gear is sleeved on the stirring shaft; the first driving member includes a mounting plate, on which a second gear that can rotate and mesh with the first gear is provided, and a hinged plate is hingedly provided at the end of the mounting plate away from the second gear, and a hinged rod with one end hingedly connected to the hinged plate is provided on the hinged plate, and the other end of the hinged rod is hingedly connected to the second gear, the dosing tube is rotatably installed on the corresponding hinged rod, and the rotation of the stirring shaft is used to realize the circular swinging motion of the dosing tube.

[0008] Furthermore, the stirring assembly includes a mounting frame, a mounting cylinder is provided at the middle position of the mounting frame, a spiral sliding groove is provided on the inner wall of the mounting cylinder, a rotating rod is provided in the mounting cylinder, a spiral sliding block that cooperates with the sliding groove is provided on the outer wall of the rotating rod, an impeller is provided at the end of the rotating rod away from the stirring shaft, and the rotating rod moves along the mounting cylinder to drive the sliding block to slide along the sliding groove, thereby realizing that the rotating rod drives the impeller to rotate.

[0009] Furthermore, a mounting rod is provided at the end of the rotating rod near the stirring shaft, and the mounting rod is rotatably connected to a mounting support plate, and a first pulling plate is hingedly connected to the mounting support plate; the corresponding stirring assembly on the stirring shaft is provided with mutually staggered first hinges, and the first hinges include relative first clamping plates, one end of the first pulling plate extends to the corresponding first clamping plates, and a first connecting shaft passing through the first pulling plate is provided between the first clamping plates, and the rotation of the stirring shaft is used to drive the first pulling plate to pull the mounting support plate to move reciprocatingly.

[0010] Furthermore, the aeration assembly includes a plurality of aeration tubes arranged in parallel at the bottom wall of the treatment box, and aeration holes are arranged on the aeration tubes; the stirring assembly is provided with a third driving member, and the third driving member is used to pull the aeration tubes to move back and forth synchronously.

[0011] Furthermore, a sliding seat is provided on the bottom wall of the treatment box along its length direction, a mounting seat is slidably provided on the sliding seat, and the aeration pipe is mounted on the corresponding mounting seat; The third driving member includes a second hinged member arranged on the stirring shaft, the second hinged member includes a second clamping plate, the second clamping plate is provided with mutually staggered clamping grooves, a second pulling plate is provided on the mounting seat with one end hingedly connected to the mounting seat, the other end of the second pulling plate extends into the corresponding clamping groove, a second connecting shaft is provided in the clamping groove and passes through the second pulling plate, and the rotation of the stirring shaft is used to pull the mounting seat to move back and forth.

[0012] Furthermore, the dosing assembly also includes a medicine storage tank arranged on the cover plate, a medicine outlet pipe is arranged at the bottom of the medicine storage tank, a solenoid valve is arranged on the medicine outlet pipe, and the medicine outlet pipe is connected to the corresponding dosing pipe through a hose.

[0013] Furthermore, a motor for driving the stirring shaft to rotate is arranged on the cover plate.

[0014] The present invention also provides a method for treating printing and dyeing wastewater, which adopts the above-mentioned printing and dyeing wastewater treatment device and specifically comprises the following steps: Step 1: Add the printing and dyeing wastewater to be treated into the treatment box through the upper opening of the treatment box; Step 2: The dosing component adds the activated sludge mixture to the sewage through the dosing pipe, and at the same time, the motor is started to drive the stirring component to perform the stirring operation. At the same time, the dosing pipe is driven by the first driving member to perform a circular swinging motion to avoid the concentration of the dosing position of the activated sludge mixture. At the same time, the stirring component drives the stirring flow component to work to stir the sewage on both sides of the stirring component to achieve a better mixing effect of the activated sludge mixture and the sewage; Step 3, aerating the sewage through the aeration pipe, and at the same time, the stirring assembly drives the aeration pipe to reciprocate at the bottom of the sewage through the second driving member, so as to preferably make the activated sludge in the sewage contact with the air, so as to promote the degradation of organic pollutants in the sewage by microorganisms; Step 4: After the sewage treatment is completed, the treated sewage in the treatment box is discharged into the next treatment process for treatment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can drive the dosing pipe to make a circular swinging motion through the operation of the stirring component to avoid the active sludge mixed liquid added to the sewage by the dosing pipe being relatively concentrated. At the same time, the operation of the stirring component can drive the flow stirring component to stir the sewage on both sides of the stirring component, thereby enabling the sewage in the treatment box to be better stirred, so as to achieve a better mixing effect of the activated sludge mixed liquid and the sewage.

[0016] 2. The present invention aerates sewage through an aeration pipe. At the same time, the stirring assembly can drive the aeration pipe to move back and forth at the bottom of the sewage. Combined with the stirring effect of the stirring assembly and the flow stirring assembly, the activated sludge in the sewage can be better contacted with the air, so as to promote the degradation of organic pollutants in the sewage by microorganisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a printing and dyeing wastewater treatment device in the present invention.

[0018] Figure 2 It is a cross-sectional schematic diagram of a printing and dyeing wastewater treatment device in the present invention.

[0019] Figure 3 It is a schematic diagram of the structure between the stirring component and the dosing component in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the stirring assembly in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the flow stirring component in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the aeration assembly in the present invention.

[0023] Figure 7 It is a schematic structural diagram of the first driving member in the present invention.

[0024] The meaning of the symbols in the figure is: 100, treatment box; 110, dosing pipe; 120, medicine storage tank; 121, medicine outlet pipe; 122, solenoid valve; 130, cover plate; 140, motor; 210, stirring shaft; 211, stirring rod; 220, mounting frame; 230, rotating rod; 231, impeller; 240, aeration pipe; 250, sliding seat; 260, mounting seat; 310, first gear; 320, mounting plate; 321, second gear; 330, hinge plate; 340, hinge rod; 410, first clamping plate; 411, first connecting shaft; 420, second clamping plate; 421, clamping groove; 422, second connecting shaft; 510, mounting cylinder; 521, sliding block; 522, mounting rod; 530, mounting support plate; 540, first pulling plate; 601, aeration hole; 610, second pulling plate; 710, assembly cylinder. DETAILED DESCRIPTION

[0025] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0026] The following is combined with Figure 1-Figure 7 This embodiment is described in further detail.

[0027] like Figure 1 and Figure 2 As shown, a printing and dyeing wastewater treatment device in this embodiment includes a treatment box 100, and the upper end of the treatment box 100 is opened, so that the printing and dyeing wastewater to be treated can be added into the treatment box 100; a stirring component and a dosing component located on both sides of the stirring component are provided at the middle position of the treatment box 100, and the dosing component includes a dosing pipe 110, and a first driving member is provided on the stirring component, and the first driving member is used to drive the dosing pipe 110 to perform a circular swinging motion; In this embodiment, the dosing component is used to add an activated sludge mixture to the printing and dyeing wastewater in the treatment box 100, and the organic pollutants in the printing and dyeing wastewater are degraded by the activated sludge; Among them, by setting the stirring component, the stirring component can stir the sewage in the treatment box 100, and then the activated sludge mixed liquid added into the treatment box 100 can be preferably mixed with the sewage; Specifically, the dosing assembly further includes a drug storage tank 120 disposed on the cover plate 130, the drug storage tank 120 is used to store the activated sludge mixed liquid, a drug outlet pipe 121 is disposed at the bottom of the drug storage tank 120, and a solenoid valve 122 is disposed on the drug outlet pipe 121, and the drug outlet pipe 121 is connected to the corresponding drug dosing pipe 110 through a hose, so that when the dosing assembly performs a drug dosing operation into the treatment box 100, the solenoid valve 122 is opened, so that the activated sludge mixed liquid in the drug storage tank 120 can flow into the treatment box 100 through the hose through the drug dosing pipe 110, and when the solenoid valve 122 is closed, the dosing assembly stops adding drugs into the treatment box 100; In actual use, in order to avoid the activated sludge mixture added to the treatment box 100 through the dosing pipe 110 being too concentrated and affecting the mixing effect with the sewage, in this embodiment, through the setting of the first driving member, the stirring component can drive the first driving member to drive the dosing pipe 110 to perform a circular swinging motion during the stirring operation, thereby better changing the dosing position of the dosing pipe 110 and avoiding the activated sludge mixture added to the sewage by the dosing pipe 110 being too concentrated.

[0028] In the present embodiment, since the treatment box 100 is square and has a large volume, the stirring range of the sewage by the stirring component is limited. In order to improve the mixing effect between the activated sludge mixture and the sewage, in the present embodiment, a stirring component located on both sides of the stirring component is provided in the treatment box 100. When the stirring component is working, the stirring component drives the stirring component to stir the sewage in the treatment box 100; wherein, the stirring component is located below the dosing component, thereby, in actual use, the stirring component can stir the sewage in the swinging area of ​​the dosing pipe 110, cooperate with the stirring effect of the stirring component, thereby improving the mixing effect of the activated sludge mixture and the sewage.

[0029] In this embodiment, an aeration assembly is disposed on the bottom wall of the processing box 100 and is located on both sides of the stirring assembly. A second driving member is disposed on the stirring assembly, and the second driving member is used for the aeration assembly to reciprocate in the processing box 100.

[0030] In this embodiment, through the above-mentioned structure, in actual use, when the stirring component is performing the stirring operation, it can drive the aeration component to reciprocate at the bottom of the treatment box 100, so that the aeration component can aerate at different positions at the bottom of the sewage. In conjunction with the flow of sewage, the activated sludge in the sewage can be better contacted with the air, so as to promote the degradation of organic pollutants in the sewage by microorganisms.

[0031] In this embodiment, a drain pipe is provided at the bottom of the treatment box 100, and a switch valve is provided on the drain pipe. By setting the switch valve, the treated sewage in the treatment box 100 can be discharged through the drain pipe, so that the sewage can enter the next treatment process.

[0032] In this embodiment, a cover plate 130 is provided at the upper end and the center of the processing box 100 ; the stirring assembly includes a stirring shaft 210 rotatably provided on the cover plate 130 , and stirring rods 211 are distributed on the stirring shaft 210 .

[0033] During actual use of this embodiment, the cover plate 130 is fixed to the center position of the upper end of the treatment box 100 by welding, wherein a motor 140 for driving the stirring shaft 210 to rotate is provided on the cover plate 130. The stirring shaft 210 is driven to rotate by the motor 140, and the stirring rod 211 is further driven to rotate, thereby stirring the sewage in the treatment box 100.

[0034] Combination Figure 3 and Figure 4 As shown, in this embodiment, a first gear 310 is sleeved on the stirring shaft 210; the first driving member includes a mounting plate 320, on which a second gear 321 which is rotatable and meshes with the first gear 310 is provided, and a hinged plate 330 is hingedly provided at the end of the mounting plate 320 away from the second gear 321, and the hinged plate 330 is provided with a hinged rod 340 with one end hingedly connected to the hinged plate 330, and the other end of the hinged rod 340 is hingedly connected to the second gear 321, and the dosing tube 110 is rotatably mounted on the corresponding hinged rod 340, and the rotation of the stirring shaft 210 is used to realize the circular swinging motion of the dosing tube 110.

[0035] In this embodiment, the mounting plate 320 is detachably mounted on the cover plate 130 by screws along the length direction of the processing box 100. Figure 7 As shown, a first hinge axis penetrating the hinge plate 330 is provided at the end of the mounting plate 320 away from the second gear 321, thereby realizing the hinge connection of the hinge plate 330 on the mounting plate 320, wherein a second hinge axis penetrating the other end of the hinge rod 340 is provided on the side wall and near the edge of the second gear 321, thereby realizing the hinge connection of the other end of the hinge rod 340 on the corresponding second gear 321, wherein one end of the hinge rod 340 is installed on the mounting plate 320 through the third hinge axis, thereby realizing the hinge installation of the hinge rod 340; specifically, the hinge rod 340 is arranged parallel to the mounting plate 320, thereby, in actual use, the stirring shaft 210 rotates to drive the second gear 321 to rotate through the first gear 310, and then the hinge plate 330 is realized to make a circular motion around the first hinge axis through the hinge rod 340, thereby realizing the circular swinging motion of the dosing tube 110 installed thereon; Specifically, combined Figure 7 As shown, an assembly cylinder 710 is arranged on the third hinge shaft, and the dosing tube 110 is arranged to penetrate the assembly cylinder 710 so that the outlet of the dosing tube 110 is arranged to face the outside of the assembly cylinder 710. Therefore, when the hose is connected to the dosing tube 110, when the assembly cylinder 710 makes a circular motion with the hinge plate 330, the assembly cylinder 710 itself can rotate with the third hinge shaft, thereby avoiding the entanglement of the hose and affecting the circular swinging motion of the dosing tube 110.

[0036] Combination Figure 5 As shown, in this embodiment, the stirring assembly includes a mounting frame 220, a mounting cylinder 510 is provided at the middle position of the mounting frame 220, a spiral sliding groove is provided on the inner wall of the mounting cylinder 510, a rotating rod 230 is provided in the mounting cylinder 510, a spiral sliding block 521 that cooperates with the sliding groove is provided on the outer wall of the rotating rod 230, an impeller 231 is provided at one end of the rotating rod 230 away from the stirring shaft 210, and the rotating rod 230 moves along the mounting cylinder 510 to drive the sliding block 521 to slide along the sliding groove, so that the rotating rod 230 drives the impeller 231 to rotate.

[0037] In this embodiment, mounting parts are provided at both ends of the mounting frame 220, and the mounting parts are mounted on the opposite inner walls of the processing box 100 by screws to achieve fixed installation of the mounting frame 220 in the processing box 100; Through the above-mentioned structure, the rotating rod 230 can reciprocate along the mounting cylinder 510, and can drive the sliding block 521 to slide along the sliding groove, so that the rotating rod 230 can rotate, and then drive the impeller 231 to rotate. At the same time, as the rotating rod 230 moves, the sewage on both sides of the stirring assembly is stirred to make the sewage flow, so as to improve the stirring effect of the sewage.

[0038] In this embodiment, a mounting rod 522 is provided at the end of the rotating rod 230 near the stirring shaft 210, and the mounting rod 522 is rotatably connected to a mounting support plate 530, and a first pulling plate 540 is hingedly connected to the mounting support plate 530; the corresponding flow-stirring assembly on the stirring shaft 210 is provided with mutually staggered first hinges, and the first hinges include relative first clamping plates 410, one end of the first pulling plate 540 extends to the corresponding first clamping plates 410, and a first connecting shaft 411 that passes through the first pulling plate 540 is provided between the first clamping plates 410, and the rotation of the stirring shaft 210 is used to drive the first pulling plate 540 to pull the mounting support plate 530 to move back and forth.

[0039] When the present embodiment is actually used, the mounting support plate 530 is L-shaped, and the mounting rod 522 passes through one side wall of the mounting support plate 530, and a nut is threadedly connected to the through end thereof, thereby realizing the rotation connection of the rotating rod 230 on the mounting support plate 530; wherein, one end of the first pulling plate 540 is hingedly connected to the other side wall of the mounting support plate 530, and the other end of the first pulling plate 540 is hingedly connected to the corresponding first clamping plate 410, because the stirring shaft 210 relative to the first clamping plate 410 is vacant, and at the same time, the first connecting shaft 411 is fixedly connected to the first clamping plate 410, thereby, the rotation of the stirring shaft 210 can drive the first clamping plate 410 to rotate, and then the mounting support plate 530 is pulled by the first pulling plate 540 to reciprocate, thereby pulling the rotating rod 230 to reciprocate; Among them, since the first clamping plate 410 is staggered relative to each other, when actually used, the stirring shaft 210 can rotate to drive the rotating rods 230 on both sides to reciprocate through the corresponding first pulling plate 540, so that the flow stirring components on both sides of the stirring component can work; It should be noted that the rotation speed of the stirring shaft 210 in this embodiment is relatively moderate, so that it can pull the rotating rod 230 to perform reciprocating rotation and at the same time, it can drive the dosing tube 110 to perform circular swinging motion to perform dosing operations.

[0040] Combination Figure 6 As shown, in this embodiment, the aeration assembly includes a plurality of aeration tubes 240 arranged in parallel at the bottom wall of the treatment box 100, and aeration holes 601 are arranged on the aeration tubes 240; the second driving member is arranged on the stirring shaft 210, and the second driving member is used to pull the aeration tubes 240 to move back and forth synchronously.

[0041] In this embodiment, a sliding seat 250 is provided on the bottom wall of the treatment box 100 along its length direction, and a mounting seat 260 is slidably provided on the sliding seat 250, and the aeration pipe 240 is mounted on the corresponding mounting seat 260; The second driving member includes a second hinged member arranged on the stirring shaft 210, and the second hinged member includes a second clamping plate 420. The second clamping plate 420 is provided with mutually offset clamping grooves 421. The mounting seat 260 is provided with a second pulling plate 610 with one end hingedly connected to the mounting seat 260. The other end of the second pulling plate 610 extends into the corresponding clamping groove 421. The clamping groove 421 is provided with a second connecting shaft 422 that passes through the second pulling plate 610. The stirring shaft 210 rotates to pull the mounting seat 260 to move back and forth.

[0042] In actual use of this embodiment, an air supply assembly for supplying air to the aeration pipe 240 is provided outside the treatment box 100, which is an existing structure, thereby enabling the aeration pipe 240 to perform aeration treatment in the sewage through the aeration holes 601; Specifically, a T-shaped slide groove is provided on the upper side of the sliding seat 250 along its length direction, and a T-shaped slider is provided on the lower side wall of the mounting seat 260 and slides in the T-shaped slide groove, thereby realizing the sliding setting of the mounting seat 260 on the sliding seat 250, wherein the aeration pipes 240 are arranged on the mounting seat 260 in parallel along the width direction of the processing box 100, thereby, the sliding of the mounting seat 260 on the sliding seat 250 can drive the multiple aeration pipes 240 to move synchronously; Among them, combined Figure 4 As shown, since the stirring shaft 210 in the clamping groove 421 is vacant, and at the same time, the second connecting shaft 422 is fixedly connected to the clamping groove 421, and the two ends of the second pulling plate 610 are hingedly connected to the mounting seat 260 and the second clamping plate 420, the rotation of the stirring shaft 210 can drive the second clamping plate 420 to rotate, and then the mounting seats 260 on both sides of the stirring shaft 210 are driven to reciprocate on the sliding seat 250 through the second pulling plate 610, so as to realize the reciprocating movement of the aeration pipe 240.

[0043] This embodiment also provides a method for treating printing and dyeing wastewater, which uses the above-mentioned printing and dyeing wastewater treatment device and specifically includes the following steps: Step 1: Add the printing and dyeing wastewater to be treated into the treatment box 100 through the upper opening of the treatment box 100; Step 2: The activated sludge mixture is stored in the medicine storage tank 120. The electromagnetic valve 122 is opened to add the activated sludge mixture in the medicine storage tank 120 into the sewage through the dosing tube 110. At the same time, the motor 140 is started to drive the stirring shaft 210 to rotate, and the stirring rod 211 is driven to stir the sewage. During this process, the stirring shaft 210 rotates, and the dosing tube 110 is driven to perform a circular swinging motion through the first driving member to avoid the concentration of the dosing position of the activated sludge mixture. At the same time, the rotating rod 230 is driven to reciprocate and rotate in the mounting cylinder 510 through the first hinge, thereby rotating and moving the impeller 231, and stirring the sewage on both sides of the stirring shaft 210, so as to achieve a better mixing effect of the activated sludge mixture and the sewage. Step 3: supplying air to the aeration pipe 240 through the air supply assembly so that the aeration pipe 240 can aerate the sewage. At the same time, the stirring shaft 210 rotates, and the aeration pipe 240 is driven to reciprocate at the bottom of the sewage through the second driving member, so that the activated sludge in the sewage is preferably in contact with the air, so as to promote the degradation of organic pollutants in the sewage by microorganisms; Step 4: After the sewage treatment is completed, the treated sewage in the treatment box 100 is discharged through the drain pipe so that the sewage can enter the next treatment process for treatment.

[0044] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A printing and dyeing wastewater treatment device, comprising a treatment box (100), characterized in that: A stirring assembly and dosing assemblies located on both sides of the stirring assembly are provided at the middle of the processing box (100), the dosing assembly comprising a dosing tube (110), and a first driving member is provided on the stirring assembly, the first driving member being used to drive the dosing tube (110) to perform a circular swinging motion; A flow stirring assembly is provided in the treatment box (100) on both sides of the stirring assembly, and when the stirring assembly is in operation, it drives the flow stirring assembly to stir the sewage in the treatment box (100); An aeration assembly located on both sides of the stirring assembly is provided at the bottom wall of the processing box (100), and a second driving member is provided on the stirring assembly. The second driving member is used for the aeration assembly to reciprocate in the processing box (100).

2. A printing and dyeing wastewater treatment device according to claim 1, characterized in that: The upper end of the processing box (100) is opened, and a cover plate (130) is provided at the upper end and at the center of the processing box (100); the stirring assembly comprises a stirring shaft (210) rotatably arranged on the cover plate (130), and stirring rods (211) are distributed on the stirring shaft (210).

3. A printing and dyeing wastewater treatment device according to claim 2, characterized in that: A first gear (310) is sleeved on the stirring shaft (210); the first driving member comprises a mounting plate (320); a second gear (321) is rotatably provided on the mounting plate (320) and meshes with the first gear (310); a hinged plate (330) is hingedly provided at an end of the mounting plate (320) away from the second gear (321); a hinged rod (340) is hingedly connected to the hinged plate (330) at one end; the hinged rod (340) is hingedly connected to the second gear (321) at the other end; the dosing tube (110) is rotatably mounted on the corresponding hinged rod (340); the rotation of the stirring shaft (210) is used to realize a circular swinging motion of the dosing tube (110).

4. A printing and dyeing wastewater treatment device according to claim 1, characterized in that: The stirring assembly comprises a mounting frame (220), a mounting cylinder (510) is provided at a middle position of the mounting frame (220), a spiral sliding groove is provided on the inner wall of the mounting cylinder (510), a rotating rod (230) is provided inside the mounting cylinder (510), a spiral sliding block (521) which cooperates with the sliding groove is provided on the outer wall of the rotating rod (230), an impeller (231) is provided at one end of the rotating rod (230) away from the stirring shaft (210), and the rotating rod (230) moves along the mounting cylinder (510) to drive the sliding block (521) to slide along the sliding groove, so that the rotating rod (230) drives the impeller (231) to rotate.

5. A printing and dyeing wastewater treatment device according to claim 4, characterized in that: A mounting rod (522) is provided at the end of the rotating rod (230) close to the stirring shaft (210), and the mounting rod (522) is rotatably connected to a mounting support plate (530), and a first pulling plate (540) is hingedly connected to the mounting support plate (530); a first hinged member that is offset from each other is provided on the stirring shaft (210) corresponding to the stirring assembly, and the first hinged member includes opposite first clamping plates (410); one end of the first pulling plate (540) extends between the corresponding first clamping plates (410), and a first connecting shaft (411) that passes through the first pulling plate (540) is provided between the first clamping plates (410); the rotation of the stirring shaft (210) is used to drive the first pulling plate (540) to pull the mounting support plate (530) to reciprocate.

6. A printing and dyeing wastewater treatment device according to claim 1, characterized in that: The aeration assembly comprises a plurality of aeration tubes (240) arranged in parallel on the bottom wall of the treatment box (100), and the aeration tubes (240) are provided with aeration holes (601); the stirring assembly is provided with a third driving member, and the third driving member is used to pull the aeration tubes (240) to move back and forth synchronously.

7. A printing and dyeing wastewater treatment device according to claim 6, characterized in that: A sliding seat (250) is provided on the bottom wall of the processing box (100) along its length direction, a mounting seat (260) is slidably provided on the sliding seat (250), and the aeration pipe (240) is mounted on the corresponding mounting seat (260); The third driving member comprises a second hinged member arranged on the stirring shaft (210), the second hinged member comprises a second clamping plate (420), the second clamping plate (420) is provided with clamping grooves (421) that are offset from each other, the mounting seat (260) is provided with a second pulling plate (610) whose one end is hingedly connected to the mounting seat (260), the other end of the second pulling plate (610) extends into the corresponding clamping groove (421), the clamping groove (421) is provided with a second connecting shaft (422) that passes through the second pulling plate (610), and the stirring shaft (210) is rotated to pull the mounting seat (260) to reciprocate.

8. A printing and dyeing wastewater treatment device according to claim 3, characterized in that: The medicine adding assembly further comprises a medicine storage tank (120) arranged on the cover plate (130); a medicine outlet pipe (121) is provided at the bottom of the medicine storage tank (120); a solenoid valve (122) is provided on the medicine outlet pipe (121); and the medicine outlet pipe (121) is connected to a corresponding medicine adding pipe (110) via a hose.

9. A printing and dyeing wastewater treatment device according to claim 2, characterized in that: The cover plate (130) is provided with a motor (140) for driving the stirring shaft (210) to rotate.

10. A method for treating printing and dyeing wastewater, characterized in that: The printing and dyeing wastewater treatment device according to any one of claims 1 to 9 is used, and specifically comprises the following steps: Step 1: Add the printing and dyeing wastewater to be treated into the treatment box (100) through the upper opening of the treatment box (100); Step 2: The dosing component adds the activated sludge mixed liquid to the sewage via the dosing pipe (110), and at the same time, starts the motor (140) to drive the stirring component to perform a stirring operation. At the same time, the dosing pipe (110) is driven by the first driving member to perform a circular swinging motion to avoid the dosing position of the activated sludge mixed liquid being concentrated. At the same time, the stirring component drives the flow stirring component to work to stir the sewage on both sides of the stirring component, so as to achieve a better mixing effect of the activated sludge mixed liquid and the sewage; Step 3: aerating the sewage through the aeration pipe (240), and at the same time, the stirring assembly drives the aeration pipe (240) to move back and forth at the bottom of the sewage through the second driving member, so as to preferably allow the activated sludge in the sewage to contact with the air, thereby promoting the degradation of organic pollutants in the sewage by microorganisms; Step 4: After the sewage treatment is completed, the treated sewage in the treatment box (100) is discharged into the next treatment process for further treatment.

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