Textile printing and dyeing wastewater purification treatment device and method

Abstract

The invention discloses a textile printing and dyeing wastewater purification treatment device and method, and relates to the technical field of wastewater treatment. A textile printing and dyeing wastewater purification treatment device comprises treatment equipment, the treatment equipment comprises a tank body, an end cover arranged at the top of the tank body and a gas conveying tank arranged at the bottom of the tank body, and a flow dividing mechanism is arranged in the gas conveying tank; the flow dividing mechanism comprises a fixing base fixed to the top in the gas conveying tank, a plurality of sets of annular channels formed in the fixing base, annular grooves formed in the top of the fixing base and in one-to-one correspondence with the annular channels, a plurality of sets of air holes formed in the bottom of the tank body and corresponding to the annular grooves, and nozzles arranged in all the sets of air holes. According to the gas conveying tank, the flow dividing mechanism is arranged, gas enters the gas conveying tank, then passes through different annular channels, then sequentially passes through a ventilation cavity, an annular groove and a nozzle and then enters the tank body to be evenly distributed, and the problems that gas is concentrated in a certain part, bubbles generated in some areas in the tank body are dense, and other areas are lack of bubbles are solved.

Description

Technical Field

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

[0002] In the treatment process of textile printing and dyeing wastewater, commonly used purification methods include flocculation, sedimentation and flotation. Among them, flocculation is used as a pre-treatment step. By adding flocculants, suspended particles and colloidal substances in the wastewater are aggregated into flocculent precipitation. The wastewater after flocculation treatment is further purified by flotation. The flotation process is usually carried out by inputting gas (such as air or nitrogen) into the treatment tank to make the water phase and gas phase in the wastewater contact, thereby forming bubbles. The flocculent precipitation in the water adheres to the bubbles and eventually floats to the water surface to form scum.

[0003] The existing publication number CN116947187A discloses a textile printing and dyeing wastewater treatment device and process, including a tank body, a stirring shaft, a first stirring frame, a second stirring frame, a feeding box, and a collecting box; the stirring shaft is arranged inside the tank body, the feeding box is arranged on the top of the tank body, the collecting box is arranged at the bottom of the tank body, the first stirring frame and the second stirring frame are arranged on the stirring shaft at intervals, and the outer side of the tank body is provided with a support leg; a liquid discharge port is provided at the upper end of the tank body, a top cover is provided on the top of the tank body, a discharge port and an electric push rod are provided at the bottom of the tank body, and a first sealing plate is provided in the discharge port; the electric push rod is fixed to the tank body through a fixing frame, and the top shaft of the electric push rod is fixedly connected to the connecting block provided at the bottom of the first sealing plate, and the first sealing plate is driven to slide by the electric push rod to open or close the discharge port.

[0004] Although the above technical solution can improve the mixing efficiency of the flocculant and the wastewater through the cooperation of the first stirring frame and the second stirring frame, and has the advantage of cleaning the surface attachments of the first stirring plate and the second stirring plate, in the prior art, after the suspended particles and colloidal substances in the wastewater are aggregated into flocculent precipitation, it is necessary to inject gas into the treatment tank through a dedicated pipeline to flotation purify the wastewater, but the gas injection path is usually a fixed position. Therefore, when the gas is injected along the preset path, the diffusion of the gas in the wastewater is limited, which will cause the bubbles generated in some areas to be dense, while other areas lack bubbles, making it impossible for the bubbles to fully contact and combine with the flocculent precipitation in the wastewater. Insufficient contact will lead to reduced flotation efficiency and difficulty in removing residual pollutants, thereby affecting the final water quality. Therefore, a new textile printing and dyeing wastewater purification treatment device and method are needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a textile printing and dyeing wastewater purification treatment device and method to solve the problem of diffusion restriction when gas is injected along a preset path when purifying wastewater by flotation method proposed in the above background technology.

[0006] The present invention provides a textile printing and dyeing wastewater purification treatment device and method, which adopts the following technical scheme:

[0007] A textile printing and dyeing wastewater purification treatment device, comprising a treatment device, the treatment device comprising a tank body, an end cover arranged on the top of the tank body and a gas tank arranged at the bottom of the tank body, a water inlet and a water outlet are arranged below the side wall of the tank body, a sewage outlet is arranged above the side wall of the tank body, an air inlet is arranged on the gas tank, and a diversion mechanism is arranged inside the gas tank;

[0008] The diversion mechanism includes a fixing seat fixed on the top of the gas tank, multiple groups of annular channels opened on the fixing seat, annular grooves opened on the top of the fixing seat corresponding to the annular channels one by one, multiple groups of air holes opened on the bottom of the tank body corresponding to the annular grooves, and nozzles arranged in each group of air holes. The multiple groups of annular channels are opened in sequence from the inside to the outside along the center of the fixing seat, and the bottom end of each group of annular channels is provided with a reciprocating mechanism for opening and closing;

[0009] A conical annular guide plate is fixedly arranged in each group of the annular channels;

[0010] There is a single group of conical annular guide plates in the annular channel at the center, and the single group of conical annular guide plates surrounds and forms a ventilation cavity for gas to pass through;

[0011] The conical annular guide plates in the annular channels at other positions are symmetrically arranged in pairs, and another ventilation cavity for gas to pass through is surrounded between the symmetrically arranged conical annular guide plates.

[0012] Furthermore, the reciprocating mechanism includes an annular baffle plate disposed at the bottom end of each group of annular channels, multiple groups of telescopic parts disposed between each group of annular baffle plates and the conical annular guide plate, a shaft rod rotatably disposed in the gas tank, and an eccentric wheel fixed on the shaft rod and corresponding to the annular baffle plate;

[0013] The heights between two adjacent groups of annular baffles are staggered, and a pulley is rotatably provided at the bottom of each group of the annular baffles, and the eccentric wheel is in sliding contact with the corresponding pulley.

[0014] Furthermore, one end of the shaft rod passes through the gas tank and is fixed with a driving shaft. A bracket is fixed outside the gas tank, a connecting frame is fixed on the bracket, a motor is installed on the connecting frame, and the output end of the motor is fixedly connected to the driving shaft.

[0015] Furthermore, the telescopic part includes a sleeve rod fixed on the annular baffle, a chamber opened in the sleeve rod, and an insertion rod fixed to the conical annular guide plate. The insertion rod is inserted in the chamber and a spring is provided between the insertion rod and the chamber.

[0016] Furthermore, a flow guiding mechanism is provided in the tank body, and the flow guiding mechanism includes two groups of semicircular guide plates relatively arranged in the tank body, an inclined plate integrally provided with the semicircular guide plates, and a plurality of groups of slots provided on the semicircular guide plates.

[0017] Furthermore, the two groups of semicircular guide plates are arranged alternately up and down, and the angle between the bottom of each group of semicircular guide plates and the inner wall of the tank body is greater than 90°.

[0018] Furthermore, the end cover is provided with a skimming mechanism for skimming scum in the tank body, the skimming mechanism includes a main shaft rotatably arranged on the end cover, a scraper fixed on the main shaft, a movable groove opened on the scraper, a skimming plate arranged in the movable groove rotated by the rotating shaft, torsion springs arranged at both ends of the rotating shaft and a gear fixed on the rotating shaft, and a tooth plate meshing with the gear is fixed in the tank body.

[0019] Furthermore, a first bevel tooth is fixed on the main shaft, a second bevel tooth is meshed with one side of the first bevel tooth, a transmission shaft is fixed on the second bevel tooth, the transmission shaft passes through the end cover, and a transmission assembly is provided between the transmission shaft and the drive shaft.

[0020] Furthermore, a support is fixed in the gas tank, and the shaft rod movably passes through the support and is rotatably connected to the support via a bearing.

[0021] A method for using a textile printing and dyeing wastewater purification treatment device, using the textile printing and dyeing wastewater purification treatment device, comprising the following steps:

[0022] S1: Wastewater is injected into the tank through the water inlet, and gas is injected into the gas tank through the air inlet. The gas enters through multiple sets of annular channels, and enters the nozzle through the ventilation cavity, annular groove, and air hole in turn. The gas is evenly dispersed and discharged into the wastewater in the tank through the nozzle. After the gas enters the wastewater, bubbles are generated. The bubbles will absorb the flocculent precipitation in the wastewater and bring it to the upper surface of the wastewater in the tank;

[0023] S2: At the same time, by starting the motor, controlling the rotation of the drive shaft, the eccentric wheel and the shaft, the annular baffle moves up and down at the bottom of the annular channel, realizing the alternate opening and closing of multiple groups of annular channels, so that the gas can evenly enter the tank through the annular channels;

[0024] S3: When the bubbles move upward in the wastewater, part of the bubbles continue to move upward through the slots, and the other part of the bubbles move upward through the semicircular guide plate and the inclined plate, bringing the scum in the wastewater in the tank to the upper surface of the wastewater in the tank, and finally discharged outward through the sewage outlet;

[0025] S4: While the motor controls the driving shaft to rotate, the first bevel gear, the second bevel gear, the transmission shaft and the transmission assembly cooperate to control the main shaft to rotate, so that the scraper drives the skimming plate to rotate on the upper surface of the wastewater in the tank to skim the scum;

[0026] S5: During the rotation of the scraper, when the gear contacts the tooth plate, the skimming plate flips toward the sewage outlet with the rotating shaft as the center, pushing the skimmed scum toward the sewage outlet to speed up the discharge.

[0027] Beneficial effects of the present invention:

[0028] 1. By setting up a diversion mechanism, the gas enters the gas transmission tank and passes through different annular channels, and then passes through the corresponding ventilation cavity, annular groove and nozzle in turn, and enters the tank body to contact with the wastewater, so that the gas can be evenly distributed after entering the tank body, avoiding the problem that the gas is concentrated in a certain part, resulting in dense bubbles in some areas of the tank body and lack of bubbles in other areas. The setting of the annular channel, annular groove, ventilation cavity and nozzle can evenly disperse the gas in the tank body, increase the contact area between the gas and the wastewater, and at the same time, the diversion of the gas helps to reduce the aggregation of bubbles, avoid the formation of large bubbles, and improve the dissolution and flotation effect of the gas.

[0029] 2. By setting up a reciprocating mechanism, the eccentric wheel is driven to rotate by the shaft, so that the eccentric wheel controls the annular baffle to move up and down, so that the opening and closing of multiple groups of annular channels can be alternately controlled at the same time. Through dynamic adjustment, the gas can be more evenly distributed to each annular channel as needed, avoiding the situation where there is too much gas in some annular channels and insufficient gas in other annular channels, thereby achieving uniform airflow distribution and helping to enhance the flotation effect.

[0030] 3. By providing a guide mechanism and utilizing the height difference and angle design of two sets of semicircular guide plates, the bubbles entering the tank body can be guided to move upward along the surfaces of the semicircular guide plates and the inclined plates, and at the same time, a part of the bubbles can move upward through the slots, thereby helping the bubbles to be evenly distributed in the tank body, reducing the random movement of the bubbles, and improving the dispersion effect and flotation ability of the bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the gas transmission tank of the present invention;

[0033] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the gas transmission tank of the present invention;

[0034] Figure 4It is a schematic diagram of the front view of the structure section of the gas delivery tank, the flow dividing mechanism and the reciprocating mechanism of the present invention;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing seat, the annular channel and the annular groove of the present invention;

[0036] Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the conical annular guide plate of the present invention;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the conical annular guide plate, the annular baffle, the telescopic part and the pulley of the present invention;

[0038] Figure 8 It is an exploded schematic diagram of the three-dimensional structure of the telescopic part of the present invention;

[0039] Fig. 9 It is a front view structural cross-sectional schematic diagram of the tank body, end cover, gas tank, flow diversion mechanism and flow guide mechanism of the present invention;

[0040] Fig.10 It is a schematic diagram of the three-dimensional structure of the flow guiding mechanism of the present invention;

[0041] Fig.11 It is a schematic diagram of the three-dimensional structure of the end cover, the slag skimming mechanism, the motor and the drive shaft of the present invention;

[0042] Fig.12 It is a schematic diagram of the three-dimensional structure of the scraper, movable groove, slag skimmer, rotating shaft, torsion spring and gear of the present invention;

[0043] Fig.13 It is a schematic diagram showing the top view of the skimming plate of the present invention in the flipped state.

[0044] In the figure:

[0045] 1. Processing equipment; 11. Tank body; 111. Water inlet; 112. Water outlet; 113. Sewage outlet; 12. End cover; 13. Gas tank; 131. Air inlet; 14. Bracket; 141. Connecting frame; 2. Diverter mechanism; 21. Fixing seat; 22. Annular channel; 23. Annular groove; 24. Air hole; 25. Nozzle; 26. Conical annular guide plate; 27. Ventilation cavity; 3. Reciprocating mechanism; 31. Annular baffle; 311. Pulley; 32. Telescopic part; 321. Sleeve rod; 322 , chamber; 323, rod; 324, spring; 33, shaft; 331, support; 34, eccentric wheel; 35, drive shaft; 36, motor; 4, flow guide mechanism; 41, semicircular guide plate; 42, inclined plate; 43, slot; 5, skimming mechanism; 51, main shaft; 511, first bevel gear; 512, second bevel gear; 513, transmission shaft; 514, transmission assembly; 52, scraper; 53, movable groove; 54, skimming plate; 55, rotating shaft; 56, torsion spring; 57, gear; 58, tooth plate. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0047] Reference Figure 1-Figure 2 The present invention provides a textile printing and dyeing wastewater purification treatment device, including a treatment device 1, the treatment device 1 includes a tank body 11, an end cover 12 arranged on the top of the tank body 11 and a gas tank 13 arranged at the bottom of the tank body 11, a water inlet 111 and a water outlet 112 are respectively arranged below the side wall of the tank body 11, a sewage outlet 113 is arranged above the side wall of the tank body 11, and an air inlet 131 is arranged on the gas tank 13.

[0048] Reference Figure 2-Figure 6 A flow diversion mechanism 2 is provided in the gas delivery tank 13 .

[0049] Specifically, the diversion mechanism 2 includes a fixing seat 21 fixed to the top of the gas tank 13, a plurality of annular channels 22 opened on the fixing seat 21, an annular groove 23 opened on the top of the fixing seat 21 and corresponding to the annular channels 22, a plurality of air holes 24 opened at the bottom of the tank body 11 and corresponding to the annular groove 23, and a nozzle 25 arranged in each group of air holes 24. Since the gas pressure is higher than the water pressure in the tank body 11, the waste water in the tank body 11 will not enter the gas tank 13 through the nozzle 25. The plurality of annular channels 22 are opened in sequence from the inside to the outside along the center of the fixing seat 21. After the gas enters the gas tank 13 through the air inlet 131, it can be dispersed in sequence through the plurality of annular channels 22. A conical annular guide plate 26 is fixedly arranged in each group of annular channels 22.

[0050] Among them, the conical annular guide plates 26 in the annular channel 22 at the center position are a single group, and the single group of conical annular guide plates 26 surrounds and forms a ventilation cavity 27 for gas to pass through. The gas enters the ventilation cavity 27 through the bottom of the annular channel 22 at the center position and moves upward. The conical annular guide plates 26 in the annular channels 22 at other positions are symmetrically arranged in pairs, and another ventilation cavity 27 for gas to pass through is surrounded by the symmetrically arranged conical annular guide plates 26. The gas enters the corresponding ventilation cavity 27 through the bottom of the annular channels 22 at other positions and moves upward.

[0051] It should be noted that the cross-section of the ventilation cavity 27 is a trumpet-shaped design with an opening facing downward, and the trumpet-shaped design with an opening facing downward can effectively guide the gas entering the gas tank 13 to move toward the ventilation cavity 27 and the annular groove 23 .

[0052] By opening a plurality of groups of annular channels 22 on the fixing seat 21 from the inside to the outside, the gas enters the gas transmission tank 13 and passes through different annular channels 22, and then passes through the corresponding ventilation cavity 27, the annular groove 23 and the nozzle 25 in sequence, and then enters the tank body 11 to contact the wastewater, so that the gas can be evenly distributed after entering the tank body 11, avoiding the problem that the gas is concentrated in a certain part, resulting in dense bubbles in some areas of the tank body 11 and lack of bubbles in other areas. The arrangement of the annular channel 22, the annular groove 23, the ventilation cavity 27 and the nozzle 25 can evenly disperse the gas in the tank body 11, increase the contact area between the gas and the wastewater, and at the same time, the gas diversion helps to reduce the aggregation of bubbles, avoid the formation of large bubbles, and improve the dissolution and flotation effect of the gas.

[0053] Reference Figure 3-Figure 4 A reciprocating mechanism 3 for opening and closing is provided at the bottom end of each group of annular channels 22.

[0054] Specifically, the reciprocating mechanism 3 includes an annular baffle 31 arranged at the bottom end of each group of annular channels 22, multiple groups of telescopic parts 32 arranged between each group of annular baffles 31 and the conical annular guide plate 26, a shaft 33 rotatably arranged in the gas tank 13, and an eccentric wheel 34 fixed on the shaft 33 and corresponding to the annular baffle 31, wherein the height between two adjacent groups of annular baffles 31 is staggered, when one group of annular baffles 31 is raised and located at the bottom end of the annular channel 22, the annular channel 22 can be closed, and at the same time, the other group of annular baffles 31 moves downward away from the bottom end of the annular channel 22 to open the annular channel 22.

[0055] Reference Figure 7A pulley 311 is rotatably provided at the bottom of each set of annular baffles 31, and the eccentric wheel 34 is in sliding contact with the corresponding pulley 311. The sliding contact between the eccentric wheel 34 and the pulley 311 can effectively reduce the friction. It should be noted that pulleys 311 are symmetrically provided at the bottom end of each set of annular baffles 31, and an eccentric wheel 34 is in sliding contact with each set of pulleys 311. The symmetrical design is to make the eccentric wheel 34 rotate to control the annular baffle 31 to move up and down more smoothly.

[0056] Reference Figure 2-Figure 3 One end of the shaft 33 passes through the gas tank 13 and is fixed with a driving shaft 35. A bracket 14 is fixed outside the gas tank 13, and a connecting frame 141 is fixed on the bracket 14. A motor 36 is installed on the connecting frame 141. The motor 36 is connected to an external power source through an electric wire, and the output end of the motor 36 is fixedly connected to the driving shaft 35. By starting the motor 36 to control the driving shaft 35 to rotate, the shaft 33 can be stably controlled to drive the eccentric wheel 34 to rotate, so that the eccentric wheel 34 controls the annular baffle 31 to move up and down, so that the opening and closing of multiple groups of annular channels 22 can be alternately controlled at the same time. Through dynamic adjustment, the gas can be more evenly distributed to each annular channel 22 as needed, avoiding the situation where there is too much gas in some annular channels 22 and insufficient gas in other annular channels 22, thereby achieving uniform airflow distribution, which helps to enhance the flotation effect.

[0057] Reference Figure 4 A support 331 is fixed in the gas tank 13, and the shaft 33 movably passes through the support 331 and is rotatably connected to the support 331 through a bearing. The support 331 is used to support the shaft 33 and improve the stability of the shaft 33 during rotation.

[0058] Reference Figure 8 The telescopic portion 32 includes a sleeve rod 321 fixed on the annular baffle 31, a chamber 322 opened in the sleeve rod 321, and an insertion rod 323 fixed to the conical annular guide plate 26. The insertion rod 323 is inserted in the chamber 322, and a spring 324 is provided between the insertion rod 323 and the chamber 322. The two ends of the spring 324 are respectively fixed to the bottom end of the insertion rod 323 and the inner wall of the chamber 322. When the shaft rod 33 controls the eccentric wheel 34 to rotate to move the annular baffle 31 upward, the spring 324 is compressed. When the eccentric wheel 34 rotates to control the annular baffle 31 to move downward, the spring 324 is released, so that the pulley 311 can always be in sliding contact with the eccentric wheel 34. At the same time, the insertion rod 323 can move up and down in the chamber 322, so as to limit the annular baffle 31.

[0059] Further, see Figure 9-10 A flow guiding mechanism 4 is provided in the tank body 11 .

[0060] Specifically, the guide mechanism 4 includes two groups of semicircular guide plates 41 relatively arranged in the tank body 11, an inclined plate 42 integrally arranged with the semicircular guide plates 41, and a plurality of groups of slots 43 opened on the semicircular guide plates 41. It should be noted that the two groups of semicircular guide plates 41 are staggered up and down, and the angle between the bottom of each group of semicircular guide plates 41 and the inner wall of the tank body 11 is greater than 90°. Due to the height difference and angle design of the two groups of semicircular guide plates 41, the bubbles entering the tank body 11 can be guided to move upward along the surfaces of the semicircular guide plates 41 and the inclined plates 42. At the same time, a part of the bubbles can move upward through the slots 43, thereby helping the bubbles to be evenly distributed in the tank body 11, reducing the random movement of the bubbles, and improving the dispersion effect and flotation ability of the bubbles.

[0061] During use, first, wastewater is injected into the tank body 11 through the water inlet 111, and gas is injected into the gas tank 13 through the air inlet 131. Then, by starting the motor 36, the motor 36 is used to control the rotation of the drive shaft 35, the shaft 33 and the eccentric wheel 34. During the rotation of the eccentric wheel 34, it slides and contacts with the corresponding pulley 311, thereby controlling the annular baffle 31 to move up and down. Since the height between the two groups of annular baffles 31 is staggered, when the annular baffle 31 moves up and down, multiple groups of annular channels 22 can be alternately controlled to be opened and closed at the same time. The gas enters the ventilation cavity 27 through the bottom end of the annular channel 22 in the open state, and then enters the annular groove 23 through the ventilation cavity 27. Finally, the gas is evenly dispersed and discharged into the wastewater in the tank body 11 through the nozzle 25. After entering the wastewater, the gas is evenly distributed and bubbles are generated.

[0062] When the bubbles move upward in the wastewater, some of the bubbles continue to move upward through the grooves 43, and the other part of the bubbles move upward under the guidance of the semicircular guide plate 41 and the inclined plate 42, which helps the bubbles to be evenly distributed in the tank body 11 and increases the contact time between the bubbles and the wastewater. As the bubbles continue to rise, the scum in the wastewater in the tank body 11 is brought to the upper surface of the wastewater in the tank body 11 and discharged outward through the sewage outlet 113. Finally, the treated purified water is discharged through the water outlet 112.

[0063] Reference Figure 11-13 The end cover 12 is provided with a slag skimming mechanism 5 for skimming slag in the tank body 11 .

[0064] Specifically, the slag skimming mechanism 5 includes a main shaft 51 rotatably arranged on the end cover 12, a scraper 52 fixed on the main shaft 51, a movable groove 53 provided on the scraper 52, a slag skimming plate 54 arranged in the movable groove 53 rotated by a rotating shaft 55, torsion springs 56 provided at both ends of the rotating shaft 55, and a gear 57 fixed on the rotating shaft 55. A tooth plate 58 meshing with the gear 57 is fixed in the tank body 11, and the tooth plate 58 is located at the right side of the sewage outlet 113, wherein the height at which the tooth plate 58 is fixed is consistent with the height of the gear 57. When the main shaft 51 controls the scraper 52, the movable groove 53, the slag skimming plate 54, When the rotating shaft 55, the torsion spring 56 and the gear 57 rotate, the scraper 52 and the skimming plate 54 can first gather the scum on the surface of the wastewater in the tank body 11, and when the gear 57 rotates with the main shaft 51 as the center and meshes with the tooth plate 58, the skimming plate 54 can be controlled to flip around the rotating shaft 55 as the center at the same time, wherein the skimming plate 54 is rotatably connected to the end of the movable groove 53 away from the main shaft 51 through the rotating shaft 55. Therefore, when the skimming plate 54 flips, the gathered scum can be pushed to the sewage outlet 113, thereby accelerating the efficiency of discharging the scum outward through the sewage outlet 113.

[0065] The skimming plate 54 has notches at the top and bottom of one end away from the main shaft 51, and the two ends of the torsion spring 56 respectively abut the movable groove 53 and the notch. When the main shaft 51 continues to rotate and the gear 57 is disengaged from the tooth plate 58, the skimming plate 54 can be reset again through the torque control of the torsion spring 56, thereby achieving continuous skimming of scum in the wastewater in the tank body 11, thereby improving the treatment effect of the wastewater. At the same time, by removing the scum, more bubbles can effectively contact and treat the wastewater, thereby improving the gas saturation and dispersion of the bubbles.

[0066] Furthermore, a first bevel tooth 511 is fixed on the main shaft 51, a second bevel tooth 512 is meshed on one side of the first bevel tooth 511, a transmission shaft 513 is fixed on the second bevel tooth 512, the transmission shaft 513 passes through the end cover 12, and a transmission assembly 514 is provided between the transmission shaft 513 and the drive shaft 35, the transmission assembly 514 includes a pulley and a conveyor belt, when the motor 36 controls the rotation of the drive shaft 35, the transmission assembly 514 can control the rotation of the transmission shaft 513, the second bevel tooth 512 and the first bevel tooth 511, and then the movable groove 53 rotates while the main shaft 51 controls the scraper 52, the movable groove 53, the skimming plate 54, the rotating shaft 55, the torsion spring 56 and the gear 57 to rotate, thereby reducing the bubble aggregation caused by the accumulation of scum, improving the contact efficiency between the bubbles and the wastewater, and thus improving the gas utilization rate.

[0067] During use, start 36, and the motor 36 controls the rotation of the drive shaft 35. At the same time, the transmission assembly 514 causes the transmission shaft 513 to rotate, and the engagement between the second bevel gear 512 and the first bevel gear 511 causes the main shaft 51 to rotate clockwise, thereby causing the main shaft 51 to control the scraper 52, the movable groove 53, the skimmer 54, the rotating shaft 55, the torsion spring 56 and the gear 57 to rotate clockwise. The rotation of the scraper 52 and the skimmer 54 can 11, when the gear 57 rotates with the main shaft 51 as the center and meshes with the tooth plate 58, the gear 57 drives the rotating shaft 55 to rotate counterclockwise, thereby controlling the skimming plate 54 to flip toward the sewage outlet 113 with the rotating shaft 55 as the center. When the skimming plate 54 flips toward the sewage outlet 113, the gathered scum can be pushed to the sewage outlet 113, thereby accelerating the efficiency of the scum being discharged outward through the sewage outlet 113. The flipping state of the skimming plate 54 can be specifically referred to Fig.13 .

[0068] The present invention also provides a method for using a textile printing and dyeing wastewater purification treatment device, which uses the textile printing and dyeing wastewater purification treatment device and comprises the following steps:

[0069] S1: Wastewater is injected into the tank body 11 through the water inlet 111, and gas is injected into the gas tank 13 through the gas inlet 131. The gas enters through the multiple annular channels 22, and sequentially passes through the ventilation cavity 27, the annular groove 23, and the air hole 24 to enter the nozzle 25. The gas is evenly dispersed and discharged into the wastewater in the tank body 11 through the nozzle 25. After the gas enters the wastewater, bubbles are generated. The bubbles will absorb the flocculent precipitation in the wastewater and bring it to the upper surface of the wastewater in the tank body 11;

[0070] S2: At the same time, by starting the motor 36, the driving shaft 35, the eccentric wheel 34 and the shaft 33 are controlled to rotate, so that the annular baffle 31 moves up and down at the bottom of the annular channel 22, and the multiple groups of annular channels 22 are alternately opened and closed, so that the gas can evenly pass through the annular channel 22 into the tank body 11;

[0071] S3: When the bubbles move upward in the wastewater, a portion of the bubbles continue to move upward through the slots 43, while the other portion of the bubbles are guided by the semicircular guide plate 41 and the inclined plate 42 to increase the contact time with the wastewater;

[0072] S4: The motor 36 controls the driving shaft 35 to rotate, and the first bevel gear 511, the second bevel gear 512, the transmission shaft 513 and the transmission assembly 514 cooperate to control the main shaft 51 to rotate, so that the scraper 52 drives the skimming plate 54 to rotate on the upper surface of the wastewater in the tank body 11 to skim the scum;

[0073] S5: During the rotation of the scraper 52, when the gear 57 contacts the tooth plate 58, the skimming plate 54 turns toward the sewage outlet 113 with the rotating shaft 55 as the center, pushing the skimmed scum toward the sewage outlet 113 to accelerate the discharge.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A textile printing and dyeing wastewater purification treatment device, comprising a treatment device (1), the treatment device (1) comprising a tank body (11), an end cover (12) arranged on the top of the tank body (11) and a gas tank (13) arranged on the bottom of the tank body (11), a water inlet (111) and a water outlet (112) are respectively arranged below the side wall of the tank body (11), a sewage outlet (113) is arranged above the side wall of the tank body (11), and an air inlet (131) is arranged on the gas tank (13), characterized in that: The gas delivery tank (13) is provided with a flow diversion mechanism (2); The flow dividing mechanism (2) comprises a fixing seat (21) fixed to the top of the gas tank (13), a plurality of groups of annular channels (22) opened on the fixing seat (21), annular grooves (23) opened on the top of the fixing seat (21) and corresponding to the annular channels (22), a plurality of groups of air holes (24) opened on the bottom of the tank body (11) and corresponding to the annular grooves (23), and a nozzle (25) arranged in each group of air holes (24), the plurality of groups of annular channels (22) are opened in sequence from the inside to the outside along the center of the fixing seat (21), and a reciprocating mechanism (3) for opening and closing is arranged at the bottom end of each group of annular channels (22); A conical annular guide plate (26) is fixedly arranged in each group of the annular channels (22); There is a single group of conical annular guide plates (26) in the annular channel (22) at the center, and the single group of conical annular guide plates (26) surrounds and forms a ventilation cavity (27) for gas to pass through; The conical annular guide plates (26) in the annular channels (22) at other positions are symmetrically arranged in pairs, and another ventilation cavity (27) for gas to pass through is formed between the symmetrically arranged conical annular guide plates (26).

2. The textile printing and dyeing wastewater purification treatment device according to claim 1 is characterized in that: The reciprocating mechanism (3) comprises an annular baffle (31) disposed at the bottom end of each group of annular channels (22), a plurality of telescopic parts (32) disposed between each group of annular baffles (31) and a conical annular guide plate (26), a shaft (33) rotatably disposed in the gas tank (13), and an eccentric wheel (34) fixed on the shaft (33) and corresponding to the annular baffle (31); The heights between two adjacent groups of annular baffles (31) are staggered, and a pulley (311) is rotatably provided at the bottom of each group of the annular baffles (31), and the eccentric wheel (34) is in sliding contact with the corresponding pulley (311).

3. The textile printing and dyeing wastewater purification treatment device according to claim 2 is characterized in that: One end of the shaft rod (33) passes through the gas tank (13) and is fixed with a driving shaft (35). A bracket (14) is fixed outside the gas tank (13). A connecting frame (141) is fixed on the bracket (14). A motor (36) is installed on the connecting frame (141). The output end of the motor (36) is fixedly connected to the driving shaft (35).

4. The textile printing and dyeing wastewater purification treatment device according to claim 2 is characterized in that: The telescopic portion (32) comprises a sleeve rod (321) fixed on the annular baffle (31), a chamber (322) opened in the sleeve rod (321), and an insertion rod (323) fixed to the conical annular guide plate (26); the insertion rod (323) is inserted into the chamber (322), and a spring (324) is provided between the insertion rod (323) and the chamber (322).

5. The textile printing and dyeing wastewater purification treatment device according to claim 1 is characterized in that: A flow guiding mechanism (4) is provided in the tank body (11), and the flow guiding mechanism (4) comprises two groups of semicircular guide plates (41) arranged relatively in the tank body (11), an inclined plate (42) integrally provided with the semicircular guide plates (41), and a plurality of groups of slots (43) provided on the semicircular guide plates (41).

6. The textile printing and dyeing wastewater purification treatment device according to claim 5 is characterized in that: The two groups of semicircular guide plates (41) are arranged alternately up and down, and the angle between the bottom of each group of semicircular guide plates (41) and the inner wall of the tank body (11) is greater than 90°.

7. The textile printing and dyeing wastewater purification treatment device according to claim 1 is characterized in that: The end cover (12) is provided with a scum skimming mechanism (5) for skimming scum in the tank body (11), the scum skimming mechanism (5) comprising a main shaft (51) rotatably arranged on the end cover (12), a scraper (52) fixed on the main shaft (51), a movable groove (53) provided on the scraper (52), a scum skimming plate (54) arranged in the movable groove (53) and rotatable by a rotating shaft (55), torsion springs (56) arranged at both ends of the rotating shaft (55), and a gear (57) fixed on the rotating shaft (55), and a toothed plate (58) meshing with the gear (57) is fixed in the tank body (11).

8. The textile printing and dyeing wastewater purification treatment device according to claim 7 is characterized in that: A first bevel tooth (511) is fixed on the main shaft (51), a second bevel tooth (512) is meshed on one side of the first bevel tooth (511), a transmission shaft (513) is fixed on the second bevel tooth (512), the transmission shaft (513) passes through the end cover (12), and a transmission assembly (514) is provided between the transmission shaft (513) and the drive shaft (35).

9. The textile printing and dyeing wastewater purification treatment device according to claim 2, characterized in that: A support (331) is fixed inside the gas delivery tank (13), and the shaft (33) movably passes through the support (331) and is rotatably connected to the support (331) via a bearing.

10. A method for using a textile printing and dyeing wastewater purification treatment device, using the textile printing and dyeing wastewater purification treatment device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: wastewater is injected into the tank body (11) through the water inlet (111), and gas is injected into the gas delivery tank (13) through the gas inlet (131). The gas enters through the plurality of annular channels (22), and sequentially passes through the ventilation cavity (27), the annular groove (23), and the air hole (24) into the nozzle (25). The gas is evenly dispersed and discharged into the wastewater in the tank body (11) through the nozzle (25). After the gas enters the wastewater, bubbles are generated. The bubbles absorb the flocculent precipitate in the wastewater and bring it to the upper surface of the wastewater in the tank body (11); S2: At the same time, by starting the motor (36), controlling the driving shaft (35), the eccentric wheel (34) and the shaft (33) to rotate, the annular baffle (31) moves up and down at the bottom of the annular channel (22), and the multiple groups of annular channels (22) are alternately opened and closed, so that the gas can evenly pass through the annular channels (22) into the tank body (11); S3: When the bubbles move upward in the wastewater, a portion of the bubbles continue to move upward through the slots (43), and another portion of the bubbles move upward through the guidance of the semicircular guide plate (41) and the inclined plate (42), bringing the scum in the wastewater in the tank body (11) to the upper surface of the wastewater in the tank body (11), and finally being discharged to the outside through the sewage outlet (113); S4: while the motor (36) controls the driving shaft (35) to rotate, the main shaft (51) is controlled to rotate through the cooperation of the first bevel gear (511), the second bevel gear (512), the transmission shaft (513) and the transmission assembly (514), so that the scraper (52) drives the skimming plate (54) to rotate on the upper surface of the wastewater in the tank body (11) to skim off the scum; S5: During the rotation of the scraper (52), when the gear (57) contacts the tooth plate (58), the skimming plate (54) turns around the rotating shaft (55) toward the sewage outlet (113), pushing the skimmed scum toward the sewage outlet (113) to accelerate the discharge.

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