Efficient and energy-saving type textile wastewater multi-stage treatment device

Abstract

The invention belongs to the field of textile wastewater multi-stage treatment, and particularly relates to an efficient energy-saving textile wastewater multi-stage treatment device which comprises an adjusting tank, a wastewater pipe is arranged at the position, close to the rear end, of the upper portion of the adjusting tank, two separation grooves are formed in the adjusting tank and connected through a plurality of communicating pipes, and the communicating pipes are communicated with the wastewater pipe. A stirring table capable of rotating is arranged at the bottom of the inner side of the separation tank, a plurality of fan blades are fixedly connected to the outer side of the stirring table, and a dissolved air flotation module is installed at the front end of the adjusting tank, through the arrangement, the multistage treatment effect on wastewater is achieved, the treatment process of multiple batches of different textile wastewater is effectively adapted, and the treatment efficiency is improved. According to the wastewater treatment device, the pollution degree of wastewater injected into the treatment device every time can be ensured to be the same, a subsequent treatment device can work smoothly, the wastewater can be controlled to be discharged into the subsequent device at a constant speed, and the problem that the load of the treatment device is too high when the water volume is high is solved.

Description

Technical Field

[0001] The invention belongs to the field of multi-stage treatment of textile wastewater, in particular to a high-efficiency and energy-saving multi-stage treatment device for textile wastewater. Background Art

[0002] Textile wastewater refers to various wastewaters generated in the spinning and weaving process. Textile industry wastewater generally contains pollutants such as suspended matter, grease, fiber debris, surfactants and various dyes, and needs to be treated before it can be discharged.

[0003] Since there are many types of pollutants in textile wastewater, it is impossible to remove all pollutants in the wastewater through a single process. Therefore, it generally needs to be processed by multiple devices to complete the cleaning process and meet the required discharge conditions.

[0004] Traditional treatment devices have relatively simple functions and can often only treat wastewater with a constant flow rate and constant pollution level. However, textile wastewater exists in many different stages of the textile process, which makes the pollution level and emission volume of each batch of textile wastewater different. Traditional equipment is difficult to fully carry out harmless treatment.

[0005] To this end, the present invention provides a high-efficiency and energy-saving multi-stage treatment device for textile wastewater. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the high-efficiency and energy-saving multi-stage treatment device for textile wastewater described in the present invention comprises a regulating tank, a wastewater pipe is provided above the rear end of the regulating tank, two separation tanks are provided inside the regulating tank, and the two separation tanks are connected by multiple connecting pipes, a rotatable stirring platform is provided at the inner bottom of the separation tank, a plurality of fan blades are fixed to the outer side of the stirring platform, a dissolved air flotation module is installed at the front end of the regulating tank, a conveyor belt arranged in an annular shape is provided on the outer side of the regulating tank, a plurality of hollow holes are provided on the belt surface of the conveyor belt, two rotatable deflection plates are installed between the two separation tanks, the regulating tank and the dissolved air flotation module are connected by a transmission pipe, a receiving cover for receiving water flow from the wastewater pipe is provided below the conveyor belt, and the receiving cover is connected to one of the separation tanks; The textile wastewater that needs to be treated is discharged from top to bottom onto the conveyor belt through the wastewater pipe. Due to the hollow holes on the surface of the conveyor belt, large-volume impurities such as textile fibers in the wastewater will be blocked above the conveyor belt, and the conveyor belt will continue to move, which will continuously carry the impurities away from their original position, so that large-volume impurities can be continuously filtered. The wastewater after the first-level filtration is received by the receiving cover and injected into one of the separation tanks. As the wastewater accumulates in the separation tank, part of the wastewater will enter another separation tank through the connecting pipe; pollutants in textiles generally include floating objects and sediments, large-density pollutants are precipitated, and low-density pollutants float; the connecting pipe will transfer the wastewater from the middle position of the wastewater The wastewater in the two separation tanks is moved to another separation tank, and the wastewater in the middle has fewer pollutants, so the pollution levels of the wastewater in the two separation tanks will be different; then the wastewater with different pollution levels will be discharged into the transmission pipe at different rates. When the pollution level of the wastewater in this batch is large, the discharge volume of the wastewater in the low-pollution separation tank will be increased; when the pollution level of the wastewater in the batch is small, the discharge volume of the low-pollution separation tank will be reduced; ensure that the mixed wastewater in the transmission pipe is always at the same level of pollution, and can also control the wastewater to be discharged to subsequent equipment at a constant rate, thereby completing the secondary treatment of the wastewater; through this setting, it can be ensured that the pollution level of the wastewater injected into the transmission pipe each time is the same At the same time, the subsequent treatment devices can work smoothly; when the wastewater in the low-pollution separation tank is consumed quickly and backflow occurs, the stirring table is started to rotate, and the fan blades are used to increase the stirring effect to ensure that the pollutants in the wastewater in the two separation tanks are more evenly dispersed; when the pollution level of the wastewater entering the regulating tank twice is too different, such as: the pollution level of the wastewater entering the regulating tank for the first time is low, and the pollution level of the wastewater entering the regulating tank for the second time is high, the deflection plate can be opened to mix the wastewater entering twice. Then, during the second wastewater entry process, the two separation tanks will gradually become one side with high pollution level and the other side with low pollution level, ensuring the subsequent Normal discharge work; the wastewater discharged in the transmission pipe will combine with the flocculant and enter the dissolved air flotation module for treatment after combination, thereby completing the tertiary treatment of the wastewater. The large volume of sediment will settle from the bottom of the dissolved air flotation module and wait for subsequent discharge. The small volume particles will move upward under the action of flotation and float on the water surface; after the conveyor belt is continuously running, the belt will move a circle on the top surface and then transfer to the bottom, so that the large volume of fibers isolated on the top surface fall under the action of gravity, so that the conveyor belt can continuously isolate the large volume of fibers. Through this setting, not only the multi-stage treatment effect of wastewater is achieved, but also it effectively adapts to the treatment process of multiple batches of different textile wastewater.

[0008] Preferably, a cleaning box is provided below the end of the conveyor belt, the top of the cleaning box is open, and a plurality of flat partitions are fixedly connected to the conveyor belt. The cleaning box can receive large-volume fibers that slide outward from the end of the conveyor belt. Pneumatic equipment can be installed inside the cleaning box to blow air to the bottom of the conveyor belt to assist in the fiber shedding process. At the same time, the bottom of the conveyor belt will move to the top of the dissolved air flotation module, and the partitions on the belt surface can clean the debris floating on the surface of the dissolved air flotation module to one side, thereby ensuring the long-term working effect of the dissolved air flotation module.

[0009] Preferably, the highest points of the multiple connecting pipes are at different heights, and the connecting pipes are arranged in a bent shape. A reduction motor for controlling the rotation of the deflection plate is installed at the bottom of the regulating tank. The top of the deflection plate is rotatably connected to the regulating tank through a bracket at one end. When the amount of wastewater entering the regulating tank is large, the water level in the regulating tank will gradually rise. Since the heights of the multiple connecting pipes are different, the efficiency of the flow between the two separation tanks will become higher as the water level rises. Moreover, since the connecting pipes are in a bent shape, water can be introduced into another separation tank from the middle of the separation tank, thereby avoiding sedimentation at the bottom and floating on the top surface, and ensuring that the wastewater pollution rate in the other separation tank is low.

[0010] Preferably, the surface of the mixing platform is provided with multiple drain valves 2 from top to bottom, the bottom of the regulating tank is fixedly connected to a drain valve 1, the bottom of the mixing platform is provided with a one-way pipe, the bottom of the mixing platform is fixedly connected to a circular pipe, the circular pipe is rotatably connected to the top of the one-way pipe, the drain valve 1 is communicated with the one-way pipe, a mixing detection pipe is connected between the two one-way pipes, the mixing detection pipe is communicated with the transmission pipe, multiple drain valves 2 can transfer wastewater from different levels of wastewater, and the wastewater in the middle position has the least pollutants. In this way, even in the separation tank in the high-pollution area, the wastewater of the required concentration can be continuously taken away according to demand, and the remaining high-pollution wastewater can wait for the next batch of low-pollution wastewater to be mixed before being discharged outward, the drain valve 1 can directly extract the wastewater from the bottom, and the water is drained outward in one direction between the one-way pipes, and no backflow occurs; a contactless detection module is provided in the mixing detection tube, and an infrared suspended matter detection module can be used to detect the suspended matter content in the wastewater to judge the degree of pollution.

[0011] Preferably, a driving motor is provided on both sides of the regulating tank, and a transmission disk is fixedly connected to the output end of the driving motor and the outer side of the circular tube at the bottom of the mixing platform. A transmission belt is connected between the two transmission disks. The driving motor rotates to drive one of the transmission disks to rotate, and the transmission belt drives the other transmission disk to rotate, and then drives the circular tube and the mixing platform to rotate. In this way, the mixing platform can be rotated and the wastewater can be discharged outward at the same time.

[0012] Preferably, two liquid pumps are fixedly connected to the top of the regulating tank, and a retractable extension pipe is installed at the bottom of the liquid pump. The output end of the liquid pump is arranged horizontally outward, and the output end of the liquid pump is located above the conveyor belt. The floating objects in the wastewater in the separation tank can be absorbed by the extension pipe. The extension pipe can be extended downward according to the height of the water surface, and the liquid pump is started to extract part of the waste liquid at the top. The extracted waste liquid is discharged outward onto the conveyor belt, and the floating filtrate can be filtered again, thereby reducing the floating objects in the wastewater.

[0013] Preferably, the separation tank is provided with a floating plate that can move up and down, a plurality of through holes are opened on the surface of the floating plate, the four corners of the separation tank are rounded, the floating plate is located below the extension tube, and the floating plate will change with the height of the water level. By periodically starting the mixing table, the water in the separation tank rotates, and floating objects on the water surface will be blocked when passing through the floating plate. In this way, even if the extension tube only absorbs at one place, all floating objects can be cleaned up.

[0014] Preferably, two movable rails are provided inside the separation tank, and the movable rails are arranged vertically. Both ends of the floating plate are slidably engaged with the movable rails. The arrangement of the movable rails allows the floating plate to slide up and down stably.

[0015] Preferably, the interior of the float is hollow, and a flat floating block is fixed to the middle of the float. The floating block can provide buoyancy to the float, and the floating block is located in the middle of the float, so that the middle of the float is located on the water surface, which can effectively block floating objects.

[0016] Preferably, one end of the dissolved air flotation module is fixedly connected to a recovery box, the top of the recovery box is open, and the edge of the top surface of the recovery box is fixedly connected to a friction strip. The movement of the conveyor belt will push the floating objects on the surface of the dissolved air flotation module into the recovery box, and the friction strip can rub the bottom of the conveyor belt to help them fall off.

[0017] The beneficial effects of the present invention are as follows: 1. The high-efficiency and energy-saving multi-stage textile wastewater treatment device described in the present invention not only achieves a multi-stage treatment effect on wastewater, but also effectively adapts to the treatment process of multiple batches of different textile wastewater. It can ensure that the pollution level of the wastewater injected into the treatment equipment is the same each time, allowing subsequent treatment devices to work smoothly. It can also control the wastewater to be discharged to subsequent equipment at a constant rate, reducing the problem of overload of the treatment device when the water volume is high.

[0018] 2. The present invention discloses a high-efficiency, energy-saving multi-stage textile wastewater treatment device. The cleaning box can receive large-volume fibers that slide outward from the end of the conveyor belt. Pneumatic equipment can be installed inside the cleaning box to blow air toward the bottom of the conveyor belt to assist in the fiber shedding process. At the same time, the bottom of the conveyor belt will move above the dissolved air flotation module. The partition on the surface of the belt can clear the debris floating on the surface of the dissolved air flotation module to one side, thereby ensuring the long-term working effect of the dissolved air flotation module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a perspective view of the present invention; Figure 2 It is a three-dimensional diagram of the regulating tank of the present invention; Figure 3 It is a three-dimensional diagram of the regulating tank and the receiving cover of the present invention; Figure 4 is a cross-sectional view of the regulating tank of the present invention; Figure 5 is a perspective view of a floating plate of the present invention; Figure 6 is a top view of the separation tank of the present invention; Figure 7 is a stereoscopic diagram of the mixing detection tube of the present invention; In the figure: 1. Equalization tank; 2. Conveyor belt; 3. Partition; 4. Wastewater pipe; 5. Liquid pump; 6. Cleaning box; 7. Drive motor; 8. Dissolved air flotation module; 9. Recovery box; 11. Transmission pipe; 12. Mixing detection tube; 13. Separation tank; 14. Connecting pipe; 15. Receiving cover; 16. Extension pipe; 17. Deflection plate; 18. Mixing table; 19. Fan blade; 20. Moving rail; 21. Float; 22. Drain valve 1; 23. Transmission belt; 24. One-way pipe; 25. Drain valve 2. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 7As shown, an efficient and energy-saving multi-stage treatment device for textile wastewater according to an embodiment of the present invention comprises a regulating tank 1, a wastewater pipe 4 is provided above the regulating tank 1 near the rear end, two separation tanks 13 are provided inside the regulating tank 1, and the two separation tanks 13 are connected by a plurality of connecting pipes 14, a rotatable stirring platform 18 is provided at the inner bottom of the separation tank 13, and a plurality of fan blades 19 are fixed to the outside of the stirring platform 18, a dissolved air flotation module 8 is installed at the front end of the regulating tank 1, a conveyor belt 2 arranged in an annular shape is provided on the outside of the regulating tank 1 near the top, a plurality of hollow holes are provided on the belt surface of the conveyor belt 2, two rotatable deflection plates 17 are installed between the two separation tanks 13, the regulating tank 1 is connected to the dissolved air flotation module 8 through a transmission pipe 11, and a receiving cover 15 for receiving the water flow of the wastewater pipe 4 is provided below the conveyor belt 2, and the receiving cover 15 is connected to one of the separation tanks 13; The textile wastewater that needs to be treated is discharged from top to bottom onto the conveyor belt 2 through the wastewater pipe 4. Due to the hollow holes on the belt surface of the conveyor belt 2, large-volume impurities such as textile fibers in the wastewater will be blocked above the conveyor belt 2, and the conveyor belt 2 keeps moving, which will continuously carry the impurities away from their original position, so that large-volume impurities can be continuously filtered. The wastewater after the first-level filtration is received by the receiving cover 15 and injected into one of the separation tanks 13. As the wastewater accumulates in the separation tank 13, part of the wastewater will enter another separation tank 13 through the connecting pipe 14; the pollutants in the textiles generally include floating objects and sediments, with large-density pollutants precipitating and low-density pollutants floating; the connecting pipe 14 will collect the pollutants from the middle position of the wastewater. The wastewater is transferred to another separation tank 13, and the wastewater in the middle has fewer pollutants, so the pollution levels of the wastewater in the two separation tanks 13 are different; then the wastewater with different pollution levels is discharged into the transmission pipe 11 at different rates. When the pollution level of the wastewater in this batch is relatively high, the discharge volume of the wastewater in the low-pollution separation tank 13 is increased, and when the pollution level of the wastewater in the batch is relatively low, the discharge volume of the low-pollution separation tank 13 is reduced; ensure that the mixed wastewater in the transmission pipe 11 is always at the same level of pollution, and can also control the wastewater to be discharged to subsequent equipment at a constant rate, thereby completing the secondary treatment of the wastewater; through this setting, it can be ensured that the pollution level of the wastewater injected into the transmission pipe 11 each time is relatively low. The degree of pollution is the same, so that the subsequent treatment device can work smoothly; when the wastewater in the low-pollution separation tank 13 is consumed faster and backflow occurs, the stirring table 18 is started to rotate, and the fan blades 19 are used to increase the stirring effect to ensure that the pollutants in the wastewater in the two separation tanks 13 are more evenly dispersed; when the pollution level of the wastewater introduced into the regulating tank 1 twice is too different, such as: the pollution level of the wastewater introduced into the regulating tank 1 for the first time is low, and the pollution level of the wastewater introduced for the second time is high, the deflection plate 17 can be opened to mix the wastewater introduced twice, and then during the continued introduction of the second wastewater, the two separation tanks 13 will gradually become one side with a high pollution level and the other side with a low pollution level. Ensure subsequent normal discharge work; the wastewater discharged in the transmission pipe 11 will combine with the flocculant, and after combination, it enters the dissolved air flotation module 8 for treatment, thereby completing the tertiary treatment of the wastewater, and the large volume of sediment will settle from the bottom of the dissolved air flotation module 8, waiting for subsequent discharge, and the small volume particles will move upward under the action of flotation and float on the water surface; after the conveyor belt 2 is continuously running, the belt will move one circle on the top surface and then transfer to the bottom, so that the large volume fibers isolated on the top surface fall under the action of gravity, so that the conveyor belt 2 can continuously isolate the large volume fibers. Through this setting, not only the multi-stage treatment effect of the wastewater is achieved, but also it effectively adapts to the treatment process of multiple batches of different textile wastewater.

[0023] A cleaning box 6 is provided below the end of the conveyor belt 2. The top of the cleaning box 6 is open. A plurality of flat partitions 3 are fixed to the belt of the conveyor belt 2. During operation, the cleaning box 6 can receive large-volume fibers that slide outward from the end of the conveyor belt 2. Pneumatic equipment can be installed inside the cleaning box 6 to blow air to the bottom of the conveyor belt 2 to assist in the fiber shedding process. At the same time, the bottom of the conveyor belt 2 will move to the top of the dissolved air flotation module 8. The partition 3 on the surface of the belt can clean the debris floating on the surface of the dissolved air flotation module 8 to one side, thereby ensuring the long-term working effect of the dissolved air flotation module 8.

[0024] The highest points of the multiple connecting pipes 14 are at different heights. The connecting pipes 14 are arranged in a bent shape. A reduction motor for controlling the rotation of the deflection plate 17 is installed at the bottom of the regulating tank 1. The top of the deflection plate 17 is rotatably connected to the regulating tank 1 through a bracket at one end. During operation, when the amount of wastewater introduced is large, the water level in the regulating tank 1 will gradually rise. Since the heights of the multiple connecting pipes 14 are different, as the water level rises, the efficiency of the flow between the two separation tanks 13 will be higher. And since the connecting pipe 14 is in a bent shape, water can be introduced into another separation tank 13 from the middle of the separation tank 13, thereby avoiding sedimentation at the bottom and floating on the top surface, ensuring that the wastewater pollution rate in the other separation tank 13 is low.

[0025] The surface of the mixing platform 18 is provided with a plurality of drain valves 25 from top to bottom. A drain valve 1 22 is fixedly connected to the bottom of the regulating tank 1. A one-way pipe 24 is provided at the bottom of the mixing platform 18. A round pipe is fixedly connected to the bottom of the mixing platform 18. The round pipe is rotatably connected to the top of the one-way pipe 24. The drain valve 1 22 is connected to the one-way pipe 24. A mixing detection pipe 12 is connected between the two one-way pipes 24. The mixing detection pipe 12 is connected to the transmission pipe 11. During operation, multiple drain valves 25 can transfer wastewater from different levels of wastewater. The wastewater in the middle position has the least pollutants. In this way, even in the separation tank 13 in the high-pollution area, wastewater of the required concentration can be continuously taken out according to demand. The remaining high-pollution wastewater can wait for the next batch of low-pollution wastewater to be mixed before being discharged. The drain valve 1 22 can directly extract the wastewater from the bottom, and the one-way pipe 24 drains the wastewater in one direction without backflow. A contactless detection module is provided in the mixing detection tube 12, and an infrared light suspended matter detection module can be used to detect the suspended matter content in the wastewater to judge the degree of pollution.

[0026] A drive motor 7 is provided on both sides of the regulating tank 1. A transmission disc is fixedly connected to the output end of the drive motor 7 and the outer side of the bottom circular tube of the mixing platform 18. A transmission belt 23 is sleeved between the two transmission discs. During operation, the driving motor 7 rotates, driving one of the transmission discs to rotate, and then driving the other transmission disc to rotate through the transmission belt 23, and then driving the round pipe and the mixing table 18 to rotate, so that the mixing table 18 can rotate and the wastewater can be discharged outward at the same time.

[0027] Two liquid pumps 5 are fixedly connected to the top of the regulating tank 1. A retractable extension tube 16 is installed at the bottom of the liquid pump 5. The output end of the liquid pump 5 is arranged horizontally outward and is located above the conveyor belt 2. During operation, floating objects in the wastewater in the separation tank 13 can be absorbed by the extension pipe 16. The extension pipe 16 can be extended downward according to the height of the water surface, and the liquid extraction pump 5 is started to extract part of the waste liquid at the top. The extracted waste liquid is discharged outward onto the conveyor belt 2, and the floating filtered matter can be filtered again, thereby reducing the floating objects in the wastewater.

[0028] The separation tank 13 is provided with a floating plate 21 that can move up and down. The surface of the floating plate 21 is provided with a plurality of through holes. The four corners of the separation tank 13 are rounded. The floating plate 21 is located below the extension tube 16. During operation, the float plate 21 will change with the height of the water level. Through the periodic activation of the stirring platform 18, the water in the separation tank 13 will rotate, and floating objects on the water surface will be blocked when passing through the float plate 21. In this way, even if the extension tube 16 only absorbs at one place, all floating objects can be cleaned up.

[0029] Two movable rails 20 are provided inside the separation tank 13. The movable rails 20 are provided vertically. Both ends of the floating plate 21 are slidably engaged with the movable rails 20. During operation, the setting of the movable rails 20 allows the floating plate 21 to slide up and down stably.

[0030] The interior of the floating plate 21 is hollow, and a flat floating block is fixedly connected to the middle of the floating plate 21; During operation, the floating block can provide buoyancy to the floating plate 21, and the floating block is located in the middle of the floating plate 21, so that the middle of the floating plate 21 is located on the water surface, which can effectively block floating objects.

[0031] One end of the dissolved air flotation module 8 is fixedly connected to a recovery box 9, the top of the recovery box 9 is open, and a friction strip is fixedly connected to the edge of the top surface of the recovery box 9; During operation, the movement of the conveyor belt 2 will push the floating objects on the surface of the dissolved air flotation module 8 into the recovery box 9, and the friction strips can rub the bottom of the conveyor belt 2 to help them fall off.

[0032] During operation, the textile wastewater that needs to be treated is discharged from top to bottom onto the conveyor belt 2 through the wastewater pipe 4. Due to the hollow holes on the belt surface of the conveyor belt 2, large-volume impurities such as textile fibers in the wastewater will be blocked above the conveyor belt 2, and the conveyor belt 2 keeps moving, which will continuously remove the impurities from their original position, thereby continuously filtering large-volume impurities. The wastewater after the first-stage filtration is received by the receiving cover 15 and injected into one of the separation tanks 13. As the wastewater accumulates in the separation tank 13, part of the wastewater will enter another separation tank 13 through the connecting pipe 14; the pollutants in the textiles generally include floating objects and sediments, with large-density pollutants precipitating and low-density pollutants floating; the connecting pipe 14 will collect the pollutants from the middle of the wastewater. The wastewater is transferred to another separation tank 13 at the same position, and the wastewater in the middle has fewer pollutants, so the pollution levels of the wastewater in the two separation tanks 13 are different; then the wastewater with different pollution levels is discharged into the transmission pipe 11 at different rates, and when the pollution level of the wastewater in this batch is relatively high, the discharge volume of the wastewater in the low-pollution separation tank 13 is increased, and when the pollution level of the wastewater in the batch is relatively low, the discharge volume of the low-pollution separation tank 13 is reduced; ensure that the mixed wastewater in the transmission pipe 11 is always at the same pollution level, and can also control the wastewater to be discharged to subsequent equipment at a constant rate, thereby completing the secondary treatment of the wastewater; through this setting, it can be ensured that the wastewater injected into the transmission pipe 11 is always The pollution levels are the same, so that subsequent treatment devices can work smoothly; when the wastewater in the low-pollution separation tank 13 is consumed faster and backflow occurs, the stirring table 18 is started to rotate, and the fan blades 19 are used to increase the stirring effect to ensure that the pollutants in the wastewater in the two separation tanks 13 are more evenly dispersed; when the pollution levels of the wastewater introduced into the regulating tank 1 twice are too different, such as: the pollution level of the wastewater introduced into the regulating tank 1 for the first time is low, and the pollution level of the wastewater introduced for the second time is high, the deflection plate 17 can be opened to allow the wastewater introduced twice to be mixed first, and then during the continued introduction of the second wastewater, the two separation tanks 13 will gradually become one side with a high pollution level and the other side with a low pollution level. , ensuring the subsequent normal discharge work; the wastewater discharged in the transmission pipe 11 will be combined with the flocculant, and after the combination, it will enter the dissolved air flotation module 8 for treatment, thereby completing the tertiary treatment of the wastewater, and the large volume of sediment will settle from the bottom of the dissolved air flotation module 8, waiting for subsequent discharge, and the small volume of particles will move upward under the action of flotation and float on the water surface; after the conveyor belt 2 is continuously running, the belt will move one circle on the top surface and then transfer to the bottom, so that the large volume of fibers isolated on the top surface falls under the action of gravity, so that the conveyor belt 2 can continuously isolate the large volume of fibers. Through this setting, not only the multi-stage treatment effect of the wastewater is achieved, but also it effectively adapts to the treatment process of multiple batches of different textile wastewater; The cleaning box 6 can receive large-volume fibers that slide outward from the end of the conveyor belt 2. A pneumatic device can be installed inside the cleaning box 6 to blow air to the bottom of the conveyor belt 2 to assist in the fiber shedding process. At the same time, the bottom of the conveyor belt 2 will move above the dissolved air flotation module 8. The partition 3 on the surface of the belt can clean the debris floating on the surface of the dissolved air flotation module 8 to one side, thereby ensuring the long-term working effect of the dissolved air flotation module 8. When the amount of wastewater introduced is large, the water level in the regulating tank 1 will gradually rise. Since the multiple connecting pipes 14 have different heights, the efficiency of the flow between the two separation tanks 13 will increase as the water level rises. In addition, since the connecting pipes 14 are in a curved shape, water can be introduced from the middle of the separation tank 13 into the other separation tank 13, thereby avoiding sedimentation at the bottom and floating on the top surface, ensuring that the wastewater pollution rate in the other separation tank 13 is low. Multiple drain valves 25 can transfer wastewater from different levels of wastewater. Wastewater in the middle has the least pollutants. In this way, even in the separation tank 13 in the high-pollution area, wastewater of the required concentration can be continuously removed according to demand. The remaining high-pollution wastewater can wait to be mixed with the next batch of low-pollution wastewater before being discharged. Drain valve 12 can directly extract wastewater from the bottom, and the one-way pipe 24 drains the wastewater in one direction to the outside without backflow. The mixing detection tube 12 is provided with a non-contact detection module, which can use an infrared light suspended matter detection module to detect the suspended matter content in the wastewater to determine the degree of pollution. By driving the motor 7 to rotate, one of the transmission discs is driven to rotate, and the other transmission disc is driven to rotate through the transmission belt 23, thereby driving the round pipe and the mixing table 18 to rotate, so that the mixing table 18 can rotate and the wastewater can be discharged outward at the same time; The floating objects in the wastewater in the separation tank 13 can be absorbed by the extension pipe 16. The extension pipe 16 can be extended downward according to the height of the water surface, and the liquid extraction pump 5 is started to extract the waste liquid at the top. The extracted waste liquid is discharged to the conveyor belt 2, and the floating filtered objects can be filtered again, thereby reducing the floating objects in the wastewater. The floating plate 21 changes with the water level. The periodic activation of the stirring platform 18 causes the water in the separation tank 13 to rotate. Floating objects on the water surface are blocked when passing through the floating plate 21. In this way, even if the extension tube 16 only absorbs at one point, all floating objects can be cleaned up. The floating block can provide buoyancy to the floating plate 21, and the floating block is located in the middle of the floating plate 21, so that the middle of the floating plate 21 is located on the water surface, which can effectively block floating objects; The movement of the conveyor belt 2 will push the floating objects on the surface of the dissolved air flotation module 8 into the recovery box 9, and the friction strips can rub the bottom of the conveyor belt 2 to help them fall off.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving multi-stage textile wastewater treatment device, characterized by: It includes a regulating tank, a wastewater pipe is provided above the rear end of the regulating tank, two separation tanks are provided inside the regulating tank, and the two separation tanks are connected by multiple connecting pipes. A rotatable stirring platform is provided at the bottom of the inner side of the separation tank, and multiple fan blades are fixed to the outside of the stirring platform. A dissolved air flotation module is installed at the front end of the regulating tank, and a conveyor belt arranged in a ring shape is provided on the top of the outer side of the regulating tank. The belt surface of the conveyor belt is provided with multiple hollow holes. Two rotatable deflection plates are installed between the two separation tanks. The regulating tank and the dissolved air flotation module are connected by a transmission pipe. A receiving cover for receiving water flow from the wastewater pipe is provided below the conveyor belt, and the receiving cover is connected to one of the separation tanks.

2. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 1 is characterized in that: A cleaning box is provided below the end of the conveyor belt, the top of the cleaning box is open, and a plurality of flat partitions are fixedly connected to the belt of the conveyor belt.

3. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 2 is characterized in that: The highest points of the multiple connecting pipes have different heights. The connecting pipes are arranged in a bent shape. A reduction motor for controlling the rotation of the deflection plate is installed at the bottom of the regulating tank. The top of the deflection plate is rotatably connected to the regulating tank through a bracket at one end.

4. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 3 is characterized by: A plurality of drain valves 2 are provided on the surface of the mixing platform from top to bottom, a drain valve 1 is fixedly connected to the bottom of the regulating tank, a one-way pipe is provided at the bottom of the mixing platform, a round pipe is fixedly connected to the bottom of the mixing platform, the round pipe is rotatably connected to the top of the one-way pipe, the drain valve 1 is connected to the one-way pipe, a mixing detection pipe is connected between the two one-way pipes, and the mixing detection pipe is connected to the transmission pipe.

5. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 4 is characterized in that: Drive motors are provided on both sides of the regulating tank. The output end of the drive motor and the outer side of the bottom circular tube of the mixing platform are fixedly connected with transmission discs, and a transmission belt is sleeved between the two transmission discs.

6. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 5 is characterized in that: Two liquid pumps are fixedly connected to the top of the regulating tank, and a telescopic extension tube is installed at the bottom of the liquid pump. The output end of the liquid pump is arranged horizontally outward and is located above the conveyor belt.

7. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 6 is characterized in that: The separation tank is provided with a floating plate capable of moving up and down, a plurality of through holes are opened on the surface of the floating plate, the four corners of the separation tank are rounded, and the floating plate is located below the extension tube.

8. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 7 is characterized in that: Two movable rails are arranged inside the separation tank. The movable rails are arranged vertically, and both ends of the floating plate are slidably engaged with the movable rails.

9. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 8, characterized in that: The interior of the floating plate is hollow, and a flat floating block is fixedly connected to the middle of the floating plate.

10. The high-efficiency and energy-saving multi-stage textile wastewater treatment device according to claim 9, characterized in that: One end of the dissolved air flotation module is fixedly connected to a recovery box, the top of the recovery box is open, and a friction strip is fixedly connected to the edge of the top surface of the recovery box.

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