A printing and dyeing wastewater treatment device and method

Abstract

The present application relates to sewage treatment technical field, specifically, it relates to a kind of printing and dyeing sewage treatment device and method, treatment box is equipped with stirring assembly and dosing assembly, dosing assembly includes dosing pipe, first driving element is provided on stirring assembly, and first driving element is used to drive dosing pipe to do circumferential swing movement;Treatment box is equipped with the flow stirring assembly in the stirring assembly both sides, stirring assembly works to drive flow stirring assembly to agitate sewage in treatment box;The bottom wall of treatment box is equipped with the aeration assembly in the stirring assembly both sides, second driving element is provided on stirring assembly, and second driving element is used to reciprocatingly move aeration assembly in treatment box.By the work of stirring assembly, it can drive dosing pipe to do circumferential swing movement, at the same time, stirring assembly work can drive flow stirring assembly to agitate sewage on the both sides of stirring assembly, to make the sewage in treatment box be better stirred, so that the mixing effect of activated sludge mixed solution and sewage is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a printing and dyeing wastewater treatment device and method. BACKGROUND

[0002] In the process of textile processing, printing and dyeing is an essential process, and the main medium of printing and dyeing is water. Printing and dyeing will produce a large amount of wastewater. In addition to the large amount of water, printing and dyeing wastewater also contains a large amount of dyes, sizing agents, auxiliaries, oil agents, acids and bases, and fiber impurities. Therefore, the treatment of printing and dyeing wastewater before discharge is particularly important. At present, in the treatment of printing and dyeing wastewater, the wastewater is mixed, stirred and aerated with a large amount of microbial activated sludge attached to it, so that the organic pollutants in the wastewater are decomposed.

[0003] In the prior art, when biodegrading the wastewater, the wastewater and the activated sludge are usually stirred to fully mix them, and the wastewater is aerated to improve the mixing among them and the subsequent treatment effect of the activated sludge on the wastewater. However, the existing mixing and stirring are mostly carried out in a biological tank. Since the biological tank has a large volume, the stirring effect of the wastewater and the activated sludge in it is poor, and thus needs to be improved. SUMMARY

[0004] The present application aims to provide a printing and dyeing wastewater treatment device and method to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A printing and dyeing wastewater treatment device, comprising a treatment tank, a stirring assembly and a dosing assembly located on both sides of the stirring assembly are arranged at a middle position of the treatment tank, 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 make a circular oscillating motion;

[0007] The treatment tank is provided with a flow stirring assembly located on both sides of the stirring assembly, and the stirring assembly drives the flow stirring assembly to stir the wastewater in the treatment tank when the stirring assembly works;

[0008] An aeration assembly is arranged at the bottom wall of the treatment tank and located on both sides of the stirring assembly, a second driving member is arranged on the stirring assembly, and the second driving member is used to move the aeration assembly reciprocally in the treatment tank.

[0009] Further, the treatment tank is open at the upper end, a cover plate is arranged at the upper end of the treatment tank and located at the central position; the stirring assembly comprises a stirring shaft rotatably arranged on the cover plate, and stirring rods are distributed on the stirring shaft.

[0010] Further, the stirring shaft is sleeved with a first gear; the first driving member comprises a mounting plate, the mounting plate is provided with a second gear which is rotatable and engaged with the first gear, the end of the mounting plate away from the second gear is hingedly provided with a hinged plate, the hinged plate is provided with a hinged rod hingedly connected to the hinged plate at one end, the other end of the hinged rod is hingedly connected to the second gear, and the dosing pipe is rotatably mounted on the corresponding hinged rod, and the rotation of the stirring shaft is used to realize the circular oscillation of the dosing pipe.

[0011] Further, the stirring assembly comprises a mounting frame, the mounting frame is provided with a mounting cylinder at the middle position, the inner wall of the mounting cylinder is provided with a sliding groove in a spiral shape, the mounting cylinder is provided with a rotating rod, the outer side wall of the rotating rod is provided with a sliding block in a spiral shape and matched with the sliding groove, and the end of the rotating rod away from the stirring shaft is provided with an impeller; the rotating rod moves along the mounting cylinder to drive the sliding block to slide along the sliding groove, so as to realize the rotation of the impeller driven by the rotating rod.

[0012] Further, the end of the rotating rod close to the stirring shaft is provided with a mounting rod, the mounting rod is rotatably connected to a mounting support plate, and the first pulling plate is hingedly connected to the mounting support plate; the stirring shaft is provided with a first hinged member which is mutually staggered and corresponds to the stirring assembly, the first hinged member comprises opposite first clamping plates, one end of the first pulling plate extends to the corresponding first clamping plates, and the first clamping plates are provided with a first connecting shaft penetrating through the first pulling plate; the rotation of the stirring shaft is used to drive the first pulling plate to reciprocatingly move the mounting support plate.

[0013] Further, the aeration assembly comprises a plurality of aeration pipes arranged side by side at the bottom wall of the treatment tank, and the aeration pipes are provided with aeration holes; the stirring assembly is provided with a third driving member, and the third driving member is used to pull the aeration pipes to synchronously reciprocate.

[0014] Further, the bottom wall of the treatment tank is provided with a sliding seat along the length direction, the mounting seat is slidably arranged on the sliding seat, and the aeration pipes are mounted on the corresponding mounting seats.

[0015] The third driving member comprises a second hinged member arranged on the stirring shaft, the second hinged member comprises a second clamping plate, the second clamping plate is provided with clamping grooves which are mutually staggered, the mounting seat is provided with a second pulling plate hingedly connected to the mounting seat at one end, the other end of the second pulling plate extends into the corresponding clamping groove, and the clamping groove is provided with a second connecting shaft penetrating through the second pulling plate; the rotation of the stirring shaft is used to pull the mounting seat to reciprocate.

[0016] Further, the dosing assembly further comprises a medicine storage tank arranged on the cover plate, the bottom of the medicine storage tank is provided with a medicine outlet pipe, the medicine outlet pipe is provided with an electromagnetic valve, and the medicine outlet pipe is connected to the corresponding dosing pipe through a hose.

[0017] Further, the cover plate is provided with a motor used to drive the stirring shaft to rotate.

[0018] The application further provides a printing and dyeing wastewater treatment method, which adopts the printing and dyeing wastewater treatment device.

[0019] Step one, the printing and dyeing wastewater to be treated is added into the treatment box through the upper end opening of the treatment box;

[0020] Step two, the dosing assembly adds the active sludge mixed solution into the wastewater through the dosing pipe, meanwhile, the motor is started to drive the stirring assembly to work, meanwhile, the dosing pipe is driven to make a circular swing movement through the first driving element, so as to avoid the concentration of the dosing position of the active sludge mixed solution, meanwhile, the stirring assembly drives the stirring flow assembly to work to stir the wastewater on both sides of the stirring assembly, so that the mixing effect of the active sludge mixed solution and the wastewater is better;

[0021] Step three, the wastewater is treated through the aeration pipe, meanwhile, the stirring assembly drives the aeration pipe to move back and forth at the bottom of the wastewater through the second driving element, preferably, the active sludge in the wastewater is contacted with the air, so as to promote the microorganisms to degrade and treat the organic pollutants in the wastewater;

[0022] Step four, after the treatment of the wastewater is completed, the treated wastewater in the treatment box is discharged into the next treatment process for treatment.

[0023] Compared with the prior art, the application has the following beneficial effects:

[0024] 1. In the application, the stirring assembly can drive the dosing pipe to make a circular swing movement, so as to avoid the concentration of the active sludge mixed solution added into the wastewater by the dosing pipe, meanwhile, the stirring assembly can drive the stirring flow assembly to stir the wastewater on both sides of the stirring assembly, so that the wastewater in the treatment box can be better stirred, and the mixing effect of the active sludge mixed solution and the wastewater is better.

[0025] 2. In the application, the wastewater is aerated through the aeration pipe, meanwhile, the stirring assembly can drive the aeration pipe to move back and forth at the bottom of the wastewater, which can make the active sludge in the wastewater better contact with the air, so as to promote the microorganisms to degrade and treat the organic pollutants in the wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the printing and dyeing wastewater treatment device in the application.

[0027] Figure 2 It is a sectional view of the printing and dyeing wastewater treatment device in the application.

[0028] Figure 3 It is a structural schematic view of the stirring assembly and the dosing assembly in the application.

[0029] Figure 4 Fig. 1 is a structural schematic diagram of the stirring assembly in the present application.

[0030] Figure 5 Fig. 2 is a structural schematic diagram of the stirring assembly in the present application.

[0031] Figure 6 Fig. 3 is a structural schematic diagram of the aeration assembly in the present application.

[0032] Figure 7 Fig. 4 is a structural schematic diagram of the first driving member in the present application.

[0033] The meanings of the respective reference numerals in the drawings are as follows:

[0034] 100, treatment tank; 110, dosing pipe; 120, dosing tank; 121, dosing outlet pipe; 122, electromagnetic valve; 130, cover plate; 140, motor;

[0035] 210, stirring shaft; 211, stirring rod; 220, mounting frame; 230, rotating rod; 231, impeller; 240, aeration pipe; 250, sliding seat; 260, mounting seat;

[0036] 310, first gear; 320, mounting plate; 321, second gear; 330, hinged plate; 340, hinged rod;

[0037] 410, first clamping plate; 411, first connecting shaft; 420, second clamping plate; 421, clamping groove; 422, second connecting shaft;

[0038] 510, mounting cylinder; 521, sliding block; 522, mounting rod; 530, mounting branch plate; 540, first pulling plate;

[0039] 601, aeration hole; 610, second pulling plate; 710, assembly cylinder. DETAILED DESCRIPTION

[0040] For further understanding of the present application, the application will be described in detail with reference to the drawings and embodiments. It should be understood that the embodiments are only used to explain the present application but not to limit the present application.

[0041] The present application will be described in detail below with reference to the accompanying drawings and embodiments. Figures 1-7 The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0042] As Figure 1 and Figure 2As shown, the printing and dyeing wastewater treatment device in the embodiment comprises a treatment box 100, the upper end of the treatment box 100 is provided with an opening, so that the printing and dyeing wastewater to be treated can be added into the treatment box 100; a stirring assembly and a dosing assembly located on both sides of the stirring assembly are arranged at the middle position of the treatment box 100, the dosing assembly comprises a dosing pipe 110, a first driving member is arranged on the stirring assembly, and the first driving member is used to drive the dosing pipe 110 to make a circular oscillating motion;

[0043] In the embodiment, the dosing assembly is used to add the activated sludge mixed solution into the printing and dyeing wastewater in the treatment box 100, and the organic pollutants in the printing and dyeing wastewater are degraded and treated by the activated sludge;

[0044] The stirring assembly is arranged, so that the stirring assembly can stir the wastewater in the treatment box 100, and the activated sludge mixed solution added into the treatment box 100 can be mixed with the wastewater preferably;

[0045] Specifically, the dosing assembly further comprises a storage tank 120 arranged on the cover plate 130, the storage tank 120 is used to store the activated sludge mixed solution, the bottom of the storage tank 120 is provided with a dosing pipe 121, an electromagnetic valve 122 is arranged on the dosing pipe 121, and the dosing pipe 121 is connected to the corresponding dosing pipe 110 through a hose, so that when the dosing assembly is performing the dosing operation into the treatment box 100, the activated sludge mixed solution in the storage tank 120 can flow into the treatment box 100 through the hose and the dosing pipe 110 by opening the electromagnetic valve 122, and when the electromagnetic valve 122 is closed, the dosing assembly stops dosing into the treatment box 100;

[0046] When actually used, in order to avoid that the activated sludge mixed solution added into the treatment box 100 through the dosing pipe 110 is too concentrated, affecting the mixing effect with the wastewater, in the embodiment, the first driving member is arranged, so that when the stirring assembly is performing the stirring operation, the first driving member can drive the dosing pipe 110 to make a circular oscillating motion, and the dosing position of the dosing pipe 110 can be changed preferably, so as to avoid that the activated sludge mixed solution added into the wastewater by the dosing pipe 110 is too concentrated.

[0047] In the embodiment, since the treatment box 100 is square and has a large volume, the stirring range of the stirring assembly for the wastewater is limited, in order to improve the mixing effect between the activated sludge mixed solution and the wastewater, in the embodiment, the treatment box 100 is provided with a flow stirring assembly located on both sides of the stirring assembly, and the flow stirring assembly is driven by the stirring assembly to stir the wastewater in the treatment box 100 when the stirring assembly works; the flow stirring assembly is located below the dosing assembly, so that when actually used, the flow stirring assembly can stir the wastewater in the oscillating area of the dosing pipe 110, and the stirring effect of the stirring assembly is combined, so as to improve the mixing effect between the activated sludge mixed solution and the wastewater.

[0048] In the embodiment, the bottom wall of the treatment box 100 is provided with an aeration assembly on both sides of the stirring assembly, and the stirring assembly is provided with a second driving member for reciprocating movement of the aeration assembly in the treatment box 100.

[0049] In the embodiment, the above structure enables the stirring assembly to drive the aeration assembly to reciprocate at the bottom of the treatment box 100 during stirring operation, so that the aeration assembly can aerate at different positions at the bottom of the sewage, and the active sludge in the sewage can be better contacted with air to promote the degradation of organic pollutants in the sewage by microorganisms.

[0050] In the embodiment, the bottom of the treatment box 100 is provided with a drain pipe, and the drain pipe is provided with a switch valve. The switch valve can be used to discharge the treated sewage in the treatment box 100 through the drain pipe, so that the sewage can enter the next treatment process.

[0051] In the embodiment, the upper end of the treatment box 100 at the central position is provided with a cover plate 130, and the stirring assembly includes a stirring shaft 210 rotatably arranged on the cover plate 130, and the stirring shaft 210 is distributed with stirring rods 211.

[0052] In actual use, the cover plate 130 is fixed by welding at the upper end of the treatment box 100 at the central position, wherein the cover plate 130 is provided with a motor 140 for driving the stirring shaft 210 to rotate. The motor 140 drives the stirring shaft 210 to rotate, and in turn drives the stirring rods 211 to rotate, so as to stir the sewage in the treatment box 100.

[0053] In combination with Figure 3 and Figure 4 In the embodiment, the stirring shaft 210 is sleeved with a first gear 310. The first driving member includes a mounting plate 320, the mounting plate 320 is provided with a second gear 321 rotatable and engaged with the first gear 310, and the end of the mounting plate 320 away from the second gear 321 is hingedly provided with a hinge plate 330. The hinge plate 330 is provided with a hinge rod 340 hingedly connected at one end to the hinge plate 330, and the other end of the hinge rod 340 is hingedly connected to the second gear 321. The dosing pipe 110 is rotatably mounted on the corresponding hinge rod 340, and the stirring shaft 210 rotates to realize the circular oscillating movement of the dosing pipe 110.

[0054] In the embodiment, the mounting plate 320 is detachably mounted on the cover plate 130 along the length direction of the treatment box 100 by screws, in combination with Figure 7As shown, the mounting plate 320 is provided with a first hinge shaft penetrating the hinge plate 330 at the end away from the second gear 321, thereby achieving the hinged connection of the hinge plate 330 on the mounting plate 320, wherein the side wall of the second gear 321 is provided with a second hinge shaft penetrating the other end of the hinge rod 340, thereby achieving the hinged 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 mounted on the mounting plate 320 through a third hinge shaft, thereby achieving the hinged mounting of the hinge rod 340; specifically, the hinge rod 340 is arranged in parallel with the mounting plate 320, thereby making the stirring shaft 210 rotate to drive the second gear 321 to rotate through the first gear 310 in actual use, and then the hinge plate 330 is made to move in a circular motion around the first hinge shaft through the hinge rod 340, and then the dosing pipe 110 mounted thereon is made to move in a circular swinging motion;

[0055] Specifically, in combination with Figure 7 As shown, the third hinge shaft is provided with an assembly cylinder 710, and the dosing pipe 110 penetrates the assembly cylinder 710, so that the outlet of the dosing pipe 110 is arranged towards the outside of the assembly cylinder 710, thereby making the assembly cylinder 710 rotate with the third hinge shaft when the assembly cylinder 710 moves in a circular motion with the hinge plate 330 when the hose is connected to the dosing pipe 110, so as to avoid the winding of the hose and affect the circular swinging motion of the dosing pipe 110.

[0056] In combination with Figure 5 As shown, in the embodiment, the stirring assembly comprises a mounting frame 220, and the mounting frame 220 is provided with a mounting cylinder 510 at the middle position, the inner wall of the mounting cylinder 510 is provided with a sliding groove in a spiral shape, the mounting cylinder 510 is provided with a rotating rod 230, the outer side wall of the rotating rod 230 is provided with a sliding block 521 in a spiral shape and matched with the sliding groove, and the one end of the rotating rod 230 away from the stirring shaft 210 is provided with an impeller 231. The rotating rod 230 moves along the mounting cylinder 510 to drive the sliding block 521 to slide along the sliding groove, thereby achieving the rotation of the rotating rod 230 and the impeller 231.

[0057] In the embodiment, the mounting frame 220 is provided with mounting portions at both ends, and the mounting portions are mounted on the opposite inner walls of the treatment box 100 through screws, so as to achieve the fixed mounting of the mounting frame 220 in the treatment box 100.

[0058] Through the above structure, the rotating rod 230 moves back and forth along the mounting cylinder 510, which can drive the sliding block 521 to slide along the sliding groove, thereby making the rotating rod 230 rotate and drive the impeller 231 to rotate. At the same time, with the movement of the rotating rod 230, the sewage on both sides of the stirring assembly is stirred, so that the sewage flows, thereby improving the stirring effect of the sewage.

[0059] In the embodiment, the end of the rotating rod 230 close to the stirring shaft 210 is provided with a mounting rod 522, the mounting rod 522 is rotationally connected to a mounting branch plate 530, the first pulling plate 540 is hingedly connected to the mounting branch plate 530; the stirring shaft 210 is provided with a first hinged piece corresponding to the stirring assembly, the first hinged piece includes opposite first clamping plates 410, one end of the first pulling plate 540 extends to the first clamping plates 410, the first clamping plates 410 are provided with a first connecting shaft 411 penetrating the first pulling plate 540, the stirring shaft 210 rotates to drive the first pulling plate 540 to reciprocatingly move the mounting branch plate 530.

[0060] In actual use, the mounting branch plate 530 is L-shaped, the mounting rod 522 penetrates one side wall of the mounting branch plate 530, and a nut is threadedly connected to the penetrating end of the mounting rod 522, so that the rotating rod 230 is rotationally connected to the mounting branch plate 530; one end of the first pulling plate 540 is hingedly connected to the other side wall of the mounting branch plate 530, and the other end of the first pulling plate 540 is hingedly connected between the corresponding first clamping plates 410. Since the stirring shaft 210 is absent between the first clamping plates 410, and the first connecting shaft 411 is fixedly connected between the first clamping plates 410, the rotation of the stirring shaft 210 can drive the first clamping plates 410 to rotate, and then drive the mounting branch plate 530 to reciprocatingly move through the first pulling plate 540, so as to reciprocatingly move the rotating rod 230.

[0061] Since the first clamping plates 410 are arranged in a staggered manner, the rotation of the stirring shaft 210 can drive the rotating rods 230 on both sides to reciprocatingly move through the corresponding first pulling plates 540, so that the stirring assemblies on both sides of the stirring assembly can work.

[0062] It should be noted that the rotating speed of the stirring shaft 210 in the embodiment is moderate, so that it can reciprocatingly move the rotating rod 230, and can drive the dosing pipe 110 to perform a circular oscillating motion to perform a dosing operation.

[0063] In combination with Figure 6 As shown in the figure, in the embodiment, the aeration assembly includes a plurality of aeration pipes 240 arranged side by side on the bottom wall of the treatment tank 100, and the aeration pipes 240 are provided with aeration holes 601; the second driving member is arranged on the stirring shaft 210, and the second driving member is used to reciprocatingly move the aeration pipes 240 synchronously.

[0064] In the embodiment, the bottom wall of the treatment tank 100 is provided with a sliding seat 250 along the length direction thereof, the mounting seat 260 is slidingly arranged on the sliding seat 250, and the aeration pipes 240 are mounted on the corresponding mounting seats 260.

[0065] The second 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 which are staggered with each other, the mounting seat 260 is provided with a second pulling plate 610 which is hingedly connected to the mounting seat 260 at one end, 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 which extends through the second pulling plate 610, and the stirring shaft 210 rotates to pull the mounting seat 260 to reciprocate.

[0066] In actual use, the treatment box 100 is provided with a gas supply assembly for supplying gas to the aeration pipe 240, which is a prior structure, so that the aeration pipe 240 can perform aeration treatment on the sewage through the aeration holes 601.

[0067] Specifically, the upper side of the sliding seat 250 is provided with a T-shaped sliding groove along the length direction thereof, and the lower side wall of the mounting seat 260 is provided with a T-shaped sliding block which slides in the T-shaped sliding groove, so that the mounting seat 260 is slidably arranged 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 treatment box 100, so that the sliding of the mounting seat 260 on the sliding seat 250 can drive the plurality of aeration pipes 240 to move synchronously.

[0068] As shown in Figure 4 As shown in

[0069] The embodiment also provides a printing and dyeing wastewater treatment method, which uses the printing and dyeing wastewater treatment device, and specifically comprises the following steps:

[0070] Step one, the printing and dyeing wastewater to be treated is added into the treatment box 100 through the upper end opening of the treatment box 100;

[0071] Step two, the activated sludge mixture is stored in the storage tank 120, the opening of the electromagnetic valve 122, the activated sludge mixture in the storage tank 120 is added to the sewage through the dosing pipe 110, at the same time, start the motor 140, drive the stirring shaft 210 rotation, drive the stirring rod 211 to stir the sewage, in this process, the stirring shaft 210 rotation, through the first driving element drive dosing pipe 110 do circular oscillation movement, to avoid the dosing position of activated sludge mixture concentration, at the same time, through the first hinged element drive rotating rod 230 in the installation cylinder 510 reciprocating movement and rotation, in turn make the impeller 231 rotation and movement, to the sewage on both sides of the stirring shaft 210 are stirred, to make the mixing effect of activated sludge mixture and sewage better;

[0072] Step three, through the gas supply assembly to the aeration pipe 240 for gas supply, so that the aeration pipe 240 can be aeration treatment to the sewage, at the same time, the stirring shaft 210 rotation, through the second driving element drive aeration pipe 240 at the bottom of the sewage reciprocating movement, preferably make the activated sludge in the sewage and air contact, to promote the degradation of organic pollutants in the sewage by microorganisms treatment;

[0073] Step four, when the treatment of sewage is completed, the treated sewage in the treatment tank 100 is discharged through the drain pipe, so that the sewage enters the next treatment process for treatment.

[0074] In summary, the above only for the preferred embodiment of the present application, any changes and modifications made in accordance with the scope of the present application patent, should be the scope of the present application patent cover.

Claims

1. A wastewater treatment device for dyeing and printing, comprising a treatment tank (100), characterized in that: The processing box (100) is provided with a stirring assembly and a dosing assembly located on both sides of the stirring assembly. The dosing assembly includes a dosing tube (110). The stirring assembly is provided with a first driving member, which is used to drive the dosing tube (110) to make a circular oscillating motion. The treatment tank (100) is equipped with agitation components located on both sides of the agitation assembly. When the agitation assembly is working, it drives the agitation components to agitate the sewage in the treatment tank (100). The bottom wall of the treatment box (100) is provided with aeration components located on both sides of the stirring component. The stirring component is provided with a second driving component, which is used for the aeration components to reciprocate within the treatment box (100). The processing tank (100) has an opening at the top and a cover plate (130) is provided at the top and center of the processing tank (100); the stirring assembly includes a stirring shaft (210) rotatably mounted on the cover plate (130) and stirring rods (211) distributed on the stirring shaft (210). A first gear (310) is sleeved on the stirring shaft (210); the first driving component includes a mounting plate (320), on which a second gear (321) is rotatable and meshes with the first gear (310), and a hinge plate (330) is hinged at the end of the mounting plate (320) away from the second gear (321), and a hinge rod (340) is provided on the hinge plate (330) with one end hinged to the hinge plate (330), and the other end of the hinge rod (340) is hinged to the second gear (321). The dosing tube (110) is rotatably mounted on the corresponding hinge rod (340), and the stirring shaft (210) rotates to realize the dosing tube (110) to make a circular oscillating motion; The agitation 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 inside the mounting cylinder (510), a spiral sliding block (521) is provided on the outer wall of the rotating rod (230) and cooperates with the sliding groove, an impeller (231) is provided at the end of the rotating rod (230) away from the stirring shaft (210), 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; The rotating rod (230) is provided with a mounting rod (522) at the end near the stirring shaft (210). The mounting rod (522) is rotatably connected to a mounting support plate (530). A first pulling plate (540) is hinged to the mounting support plate (530). The stirring shaft (210) is provided with a first hinge member that is offset from each other to the stirring assembly. The first hinge member includes opposing first clamping plates (410). One end of the first pulling plate (540) extends to the space between the corresponding first clamping plates (410). A first connecting shaft (411) is provided between the first clamping plates (410) and passes through the first pulling plate (540). The stirring shaft (210) rotates to drive the first pulling plate (540) to pull the mounting support plate (530) to move back and forth.

2. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The aeration assembly includes multiple aeration pipes (240) arranged in parallel on the bottom wall of the treatment tank (100), and aeration holes (601) are provided on the aeration pipes (240); the stirring assembly is provided with a third driving component, which is used to pull the aeration pipes (240) to move synchronously back and forth.

3. The dyeing and printing wastewater treatment device according to claim 2, characterized in that: A sliding seat (250) is provided on the bottom wall of the treatment box (100) along its length direction, and an mounting seat (260) is slidably provided on the sliding seat (250). The aeration pipe (240) is installed on the corresponding mounting seat (260). The third driving component includes a second hinge component mounted on the stirring shaft (210). The second hinge component includes a second clamping plate (420). The second clamping plate (420) is provided with interlocking clamping grooves (421). The mounting base (260) is provided with a second pulling plate (610) with one end hinged to the mounting base (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 base (260) to move back and forth.

4. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The dosing assembly also includes a storage tank (120) on the cover plate (130), with a dispensing pipe (121) at the bottom of the storage tank (120), and a solenoid valve (122) on the dispensing pipe (121). The dispensing pipe (121) is connected to the corresponding dosing pipe (110) through a hose.

5. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The cover plate (130) is provided with a motor (140) for driving the stirring shaft (210) to rotate.

6. A method for treating dyeing and printing wastewater, characterized in that: It employs a dyeing and printing wastewater treatment device as described in any one of claims 1-5, specifically including the following steps: Step 1: Add the dyeing and printing wastewater to be treated into the treatment tank (100) through the upper opening; Step 2: The dosing assembly adds activated sludge mixture to the wastewater through the dosing pipe (110). At the same time, the motor (140) is started to drive the stirring assembly to perform stirring. Meanwhile, the first drive unit drives the dosing pipe (110) to make a circular oscillating motion to avoid the dosing position of the activated sludge mixture being concentrated. At the same time, the stirring assembly drives the agitation assembly to work and stir the wastewater on both sides of the stirring assembly to make the mixing effect of activated sludge mixture and wastewater better. Step 3: Aeration treatment is carried out on the sewage through the aeration pipe (240). At the same time, the stirring component drives the aeration pipe (240) to move back and forth at the bottom of the sewage through the second driving component, so as to better enable the activated sludge in the sewage to come into contact with the air, so as to promote the degradation treatment of organic pollutants in the sewage by microorganisms. Step 4: After the wastewater treatment is completed, the treated wastewater in the treatment tank (100) is discharged into the next treatment process for further treatment.

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