Advanced treatment device for printing and dyeing wastewater

Abstract

The utility model discloses a printing and dyeing wastewater advanced treatment device, and relates to the field of wastewater treatment devices.The printing and dyeing wastewater advanced treatment device comprises a main shell, a filtering layer, a hydrolysis layer, a distillation layer and a standing layer are arranged in the main shell, a middle through groove communicated with the hydrolysis layer is formed in the top of the main shell and penetrates through the filtering layer, and a stirring mechanism is arranged in the middle through groove; the stirring mechanism comprises a rotating rod inserted into the middle through groove, the bottom of the rotating rod is located in the hydrolysis layer and is fixedly connected with a movable plate, and a stirring fan is rotationally arranged in the movable plate. Organic substances in the wastewater are effectively degraded through multiple procedures, and the deep treatment effect is achieved.

Description

Technical Field

[0001] The present application relates to the field of wastewater treatment devices, and in particular to a device for advanced treatment of printing and dyeing wastewater. Background Art

[0002] Printing and dyeing wastewater refers to the wastewater discharged during the processes of pretreatment, dyeing, printing, and finishing of cotton, wool, linen, silk, chemical fiber, or blended products. It contains a large number of complex components such as sizing agents and surfactants, and has the characteristics of high organic matter concentration, strong alkalinity, large variations in water quality and quantity. It is difficult to treat and belongs to industrial wastewater that is difficult to treat. Existing printing and dyeing wastewater treatment devices usually use filtration and filter elements for treatment, with a relatively single treatment method, and are unable to degrade a large amount of organic matter contained in the wastewater.

[0003] For example, in the patent with publication number CN202222102351.6, a printing and dyeing wastewater treatment device has the following deficiencies in actual use:

[0004] This device adsorbs and filters the debris in the wastewater through multiple filter meshes and absorbent cotton between the filter meshes, but it is unable to degrade the organic matter components contained in the wastewater, requiring additional subsequent processes. While the treatment effect is poor, the maintenance cost is increased. Summary of the Utility Model

[0005] In order to improve the problem that conventional wastewater treatment devices are unable to effectively degrade organic substances in wastewater and have a poor treatment effect, the present application provides a device for advanced treatment of printing and dyeing wastewater.

[0006] The device for advanced treatment of printing and dyeing wastewater provided by the present application adopts the following technical solutions:

[0007] A device for advanced treatment of printing and dyeing wastewater includes a main housing. A filter layer, a hydrolysis layer, a distillation layer, and a settling layer are respectively provided inside the main housing. A central through groove communicating with the hydrolysis layer is provided through the filter layer at the top of the main housing, and a stirring mechanism is arranged in the central through groove.

[0008] The stirring mechanism includes a rotating rod inserted into the central through groove. At the bottom of the rotating rod, a movable plate is fixedly connected inside the hydrolysis layer, and a stirring fan is rotatably arranged inside the movable plate.

[0009] By adopting the above technical solutions, the filter layer preliminarily filters the wastewater, and then the hydrolysis layer decomposes and converts the organic matter in the filtered wastewater, and is combined with the stirring mechanism for stirring to improve the decomposition efficiency of the wastewater. The decomposed wastewater enters the distillation layer, is heated and converted into water vapor, and flows into the settling layer for static cooling, thereby completing the advanced treatment of the wastewater.

[0010] Preferably, a water inlet communicating with the filter layer is provided on one side of the top of the main housing. A trapezoidal surface is provided on the bottom surface of the filter layer, and a screen frame communicating with the hydrolysis layer is provided on one side of the trapezoidal surface at the bottom of the filter layer.

[0011] By adopting the above technical solution, the trapezoidal surface intercepts larger particles mixed in the wastewater, and at the same time, the screen in the screen frame performs secondary interception on the remaining particles in the wastewater, thereby filtering the wastewater.

[0012] Preferably, the stirring mechanism further includes a servo motor fixed on the top of the main housing, and the output end of the servo motor is fixedly connected to the rotating rod.

[0013] By adopting the above technical solution, the servo motor drives the rotating rod to rotate, providing power for the stirring of the stirring mechanism.

[0014] Preferably, a spring is fixedly connected around the surface of the rotating rod at the position of the movable plate. One end of the spring wire away from the rotating rod is fixedly connected to the inner wall of the stirring fan, and a guiding block is fixedly provided on the surface of the fan blade of the stirring fan.

[0015] By adopting the above technical solution, the spring connects the rotating rod and the stirring fan, enabling the stirring fan to rotate synchronously to stir the wastewater. At the same time, the guiding block guides downward, driving the wastewater to stir and flow downward, increasing the contact between the wastewater and the subsequent activated sludge.

[0016] Preferably, a bactericide port communicating with the hydrolysis layer is provided on one side of the outer surface of the main housing. A sludge pool is provided on the bottom surface of the hydrolysis layer, and the sludge pool is filled with activated sludge.

[0017] By adopting the above technical solution, the activated sludge filled in the sludge pool decomposes and adsorbs the organic matter in the wastewater, and cooperates with the bactericide or defoamer conveyed through the bactericide port, thereby performing hydrolysis treatment on the wastewater.

[0018] Preferably, a water pump is fixed on the outer surface of the main housing on one side of the bactericide port. The suction end of the water pump penetrates the side wall and is fixedly connected with a filtering suction port in the hydrolysis layer, and the discharge end of the water pump penetrates the side wall and communicates with the distillation layer.

[0019] By adopting the above technical solution, the water pump connects the hydrolysis layer and the distillation layer, thereby conveying the treated wastewater in the hydrolysis layer to the distillation layer for subsequent distillation process.

[0020] Preferably, a conical block is fixedly provided on the top of the inner wall of the distillation layer, a heating wire is fixedly provided around the conical block on the inner wall of the distillation layer, and a height limiting port communicating with the static layer is provided around the conical block at the bottom of the distillation layer.

[0021] By adopting the above technical solution, the heating wire heats and vaporizes the wastewater in the distillation layer, and then the water vapor is adsorbed on the surface of the conical block for diversion, falls into the height-limiting port and is thus conveyed into the static layer.

[0022] Preferably, a water outlet communicating with the static layer is provided on one side of the outer surface of the main housing, and an observation window is rotatably provided above the water outlet on the outer surface of the main housing.

[0023] By adopting the above technical solution, the observation window facilitates personnel to observe the progress of wastewater treatment in the hydrolysis layer, and at the same time, the water outlet discharges the treated wastewater in the static layer.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The trapezoidal surface and the screen frame are used to filter the sundries remaining in the wastewater, and then the stirring fan fully stirs the wastewater and the activated sludge, and cooperates with the auxiliary liquid to degrade and adsorb the organic substances in the wastewater. Then, the heating wire is used to distill the wastewater, and finally the treated water source is statically cooled. Multiple processes decompose the organic substances in the wastewater to form in-depth treatment of the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional schematic diagram of the present application;

[0027] Figure 2 is a side sectional view of the present application;

[0028] Figure 3 is a structural diagram of the water connection layer of the present application;

[0029] Figure 4 is an exploded view of the stirring mechanism of the present application;

[0030] Figure 5 is a structural diagram of the distillation layer of the present application.

[0031] Reference numerals: 1, main housing; 2, filter layer; 3, hydrolysis layer; 4, distillation layer; 5, static layer; 6, stirring mechanism; 61, servo motor; 62, rotating rod; 63, movable plate; 64, spring; 65, stirring fan; 66, guide block;

[0032] 7, water inlet; 8, trapezoidal surface; 9, screen frame; 10, sludge tank; 11, activated sludge; 12, through groove; 13, inoculant port; 14, water pump; 15, filtering suction port;

[0033] 16, height-limiting port; 17, conical block; 18, heating wire; 19, water outlet; 20, observation window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following is combined with Figures 1-5 This application is described in further detail.

[0035] The embodiment of the present application discloses a device for deep treatment of printing and dyeing wastewater.

[0036] Reference Figure 1 、 2 3. A printing and dyeing wastewater deep treatment device comprises a main shell 1. A filtration layer 2, a hydrolysis layer 3, a distillation layer 4 and a static layer 5 are respectively provided inside the main shell 1 from top to bottom. A water inlet 7 is provided on one side of the upper end face of the main shell 1. The water inlet 7 penetrates the top of the main shell 1 and is connected with the filtration layer 2. A trapezoidal surface 8 is provided on the bottom of the inner surface of the filtration layer 2. The surface succession angle of the trapezoidal surface 8 is 100°, thereby forming an angle gap, which is convenient for intercepting wastewater particles. A screen frame 9 is fixed on the side of the bottom of the inner surface of the filtration layer 2 away from the trapezoidal surface 8. The bottom of the screen frame 9 is connected with the hydrolysis layer 3, and a screen is fixed in the middle of the screen frame 9. The screen aperture is set at 0.5-0.8 mm.

[0037] When wastewater enters the filter layer 2 through the water inlet 7, the angle of the trapezoidal surface 8 forms a certain bulge, which hinders the larger particles in the wastewater, thereby causing interception. After the initial interception, the wastewater flows downward, thereby contacting the screen of the screen frame 9, and then undergoing secondary filtration to intercept smaller particles in the wastewater, thereby achieving the filtering effect.

[0038] Reference Figure 2 、 3 , 4. A middle through groove 12 is provided on the upper end surface of the main shell 1 on one side of the water inlet 7. The middle through groove 12 passes through the top of the main shell 1 and the filter layer 2 to form a connection with the hydrolysis layer 3. The stirring mechanism 6 includes a rotating rod 62 inserted into the middle through groove 12. The bottom of the rotating rod 62 is located in the hydrolysis layer 3, and a movable plate 63 is fixed to the lower end surface of the rotating rod 62. The movable plate 63 is concave as a whole, and a spring 64 is fixed to the portion of the surface of the rotating rod 62 located in the groove of the movable plate 63. A stirring fan 65 is connected to the groove of the movable plate 63 so as to rotate around the rotating rod 62, and the spring 64 is located between the middle through hole of the stirring fan 65 and the outer surface of the rotating rod 62. At the same time, the other end of the spring wire of the spring 64 away from the rotating rod 62 is fixed to the inner wall of the through hole of the stirring fan 65. A plurality of fan blades are fixed around the outer ring of the stirring fan 65, and a guide block 66 with a downward angle of 30° is fixed on the surface of the fan blade.

[0039] It should be noted that the stirring mechanism 6 also includes a servo motor 61 screwed to the middle of the upper end surface of the main shell 1. The output shaft of the servo motor 61 is located at the top of the groove 12 and is fixedly connected to the rotating rod 62 through a coupling.

[0040] The output shaft of the servo motor 61 rotates to drive the rotating rod 62 to rotate synchronously. The rotating rod 62 drives the movable plate 63 to rotate. The bottom of the stirring fan 65 is clamped in the groove of the movable plate 63. At the same time, the spring 64 elastically connects the rotating rod 62 and the stirring fan 65, so that when the rotating rod 62 rotates, a pulling force is applied to the spring 64. When the pulling force received by the spring 64 reaches the maximum stretching value, the spring 64 rebounds, thereby driving the stirring fan 65 to rotate. As the stirring fan 65 rotates and consumes the resilience of the spring 64, the rotating rod 62 continues to rotate, and when it rotates to the maximum stretching value of the spring 64 again, the stirring fan 65 is repeatedly driven to rotate, and there is an interval of 2-3 seconds between each rotation. As the stirring fan 65 rotates, the guide block 66 guides the flowing angle of the wastewater to flow downward, thereby increasing the contact between the wastewater and the activated sludge 11.

[0041] Refer to Figure 2 、 3 On one side of the outer surface of the main housing 1, a bactericide port 13 is opened, and the bactericide port 13 penetrates through the main housing 1 and is internally connected to the hydrolysis layer 3. A rectangular sludge pool 10 is opened downward on the bottom surface of the inner wall of the hydrolysis layer 3, and activated sludge 11 is filled in the sludge pool 10. The filling height of the activated sludge 11 is flush with the sludge pool 10. And when the filling of the activated sludge 11 is completed, the lower end surface of the movable plate 63 abuts against the surface of the activated sludge 11. On the outer surface of the main housing 1 at the positions of the filter layer 2 and the hydrolysis layer 3, a groove is opened, and a viewing window 20 is rotatably connected in the groove. A transparent glass is fixedly provided in the middle of the viewing window 20, and rubber is provided around the outer surface of the viewing window 20, so that when the viewing window 20 is closed, the inside of the filter layer 2 and the hydrolysis layer 3 is sealed.

[0042] The bactericide port 13 introduces the auxiliary liquid for improving the hydrolysis efficiency into the hydrolysis layer 3 to be mixed and stirred with the wastewater. At the same time, the activated sludge 11 and the wastewater are stirred by the stirring fan 65. When the stirring fan 65 stops stirring, the organic matter in the wastewater is precipitated, and then decomposed by the activated sludge 11 to purify the wastewater. Personnel observe the treatment progress of the filter layer 2 and the hydrolysis layer 3 through the viewing window 20, and after the treatment is completed, the viewing window 20 is opened to clean and replace the trapezoidal surface 8, the screen frame 9 and the activated sludge 11.

[0043] Refer to Figure 2 、 5, on one side of the outer surface of the main housing 1 where the microbial agent port 13 is located, a water pump 14 is fixed by screws, and the water pump 14 is connected with an intake end and a discharge end. The intake end of the water pump 14 penetrates through the main housing 1 and communicates with the hydrolysis layer 3, and the end of the intake end located in the hydrolysis layer 3 is fixedly connected with a filtering suction port 15. A layer of filter screen is arranged on the surface of the filtering suction port 15 for secondary filtration. The discharge end of the water pump 14 penetrates through the main housing 1 and communicates with the distillation layer 4. In the middle of the top of the inner surface of the distillation layer 4, a conical block 17 is fixedly arranged. At the same time, a heating wire 18 is fixedly arranged around the conical block 17 on the inner surface of the distillation layer 4. A height limiting port 16 is opened at the bottom of the inner surface of the distillation layer 4 for the conical block 17. The height limiting port 16 penetrates through the main housing 1 and communicates with the static layer 5. On the other side of the outer surface of the main housing 1 relative to the microbial agent port 13, a water outlet 19 is opened, and the water outlet 19 communicates with the inside of the static layer 5.

[0044] It should be noted that the wiring end of the heating wire 18 penetrates through the main housing 1 and communicates with an external power supply mechanism, and waterproof materials are arranged at the penetration port and the outer surface of the heating wire 18.

[0045] The intake end of the water pump 14 extracts the wastewater in the hydrolysis layer 3, and then transports it to the distillation layer 4 through the discharge end for heating treatment by the heating wire 18. The wastewater is heated and vaporized to form water vapor, which rises upward. As the water vapor rises, it adsorbs on the surface of the conical block 17 to form water droplets. As the water droplets increase, they drip downward and enter the static layer 5 through the height limiting port 16 for cooling. At the same time, the height limiting port 16 has a certain height around the through hole of the static layer 5, so as to prevent the wastewater pumped out by the water pump 14 from directly entering the static layer 5. The water outlet 19 discharges the water source cooled in the static layer 5 to the outside, thus completing the deep treatment of the wastewater.

[0046] The implementation principle of a deep treatment device for printing and dyeing wastewater in an embodiment of the present application is as follows: when using this device, pipelines and other structures for introducing wastewater are connected to the water inlet 7, so as to introduce the wastewater into the filtering layer 2. The wastewater flows from top to bottom and contacts the trapezoidal surface 8, so as to be intercepted by the included angle of the trapezoidal surface 8, and large-particle sundries in the wastewater are preliminarily filtered. Then the wastewater flows into the screen frame 9 and contacts the screen, so as to conduct secondary filtration on the sundries in the wastewater;

[0047] The wastewater after filtration flows into the hydrolysis layer 3 through the screen frame 9 for temporary storage. Then, external personnel introduce the auxiliary liquid for assisting hydrolysis through the inoculant port 13, and start the servo motor 61 to rotate. The servo motor 61 drives the rotating rod 62 to rotate synchronously, and applies a tensile force to the spring 64. When the tensile force borne by the spring 64 reaches the maximum value, it rebounds. In this way, the intermittent rebound of the spring 64 is formed, so that the stirring fan 65 continuously rotates intermittently. While the wastewater is fully stirred with the activated sludge 11, it is avoided that the over-stirring of the stirring fan 65 throws the activated sludge 11 to various parts of the inner wall of the hydrolysis layer 3. Personnel observe the stirring progress in the hydrolysis layer 3 through the observation window 20. When the stirring is completed, the servo motor 61 stops rotating, and the wastewater is left standing in the activated sludge 11 for hydrolysis treatment. At the same time, when the water inlet 7 stops introducing wastewater, the inside of the hydrolysis layer 3 is in a sealed state, so as to perform anaerobic treatment on the wastewater.

[0048] When the hydrolysis of the wastewater is completed, personnel start the water pump 14 to pump water, and pump the wastewater from the hydrolysis layer 3 into the distillation layer 4. Then, start the power supply mechanism outside the device to heat the heating wire 18, so as to apply high temperature to the wastewater to form evaporation. The evaporated water vapor floats upward from bottom to top and adsorbs and condenses on the surface of the conical block 17, forming water droplets that drip downward into the height-limiting port 16, and then fall into the standing layer 5 for cooling and standing treatment, thus completing the deep treatment of the wastewater. Finally, personnel can open the water outlet 19 to discharge the water flow to the outside.

[0049] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A device for advanced treatment of printing and dyeing wastewater, characterized in that: It includes a main housing (1), and a filter layer (2), a hydrolysis layer (3), a distillation layer (4), and a static layer (5) are respectively provided inside the main housing (1). A central through groove (12) communicating with the hydrolysis layer (3) is provided through the filter layer (2) at the top of the main housing (1), and a stirring mechanism (6) is arranged in the central through groove (12). The stirring mechanism (6) includes a rotating rod (62) inserted into the central through groove (12). An activity plate (63) is fixedly connected to the bottom of the rotating rod (62) inside the hydrolysis layer (3), and a stirring fan (65) is rotatably arranged inside the activity plate (63).

2. The deep treatment device for printing and dyeing wastewater according to claim 1, characterized in that: An inlet (7) communicating with the filter layer (2) is provided on one side of the top of the main housing (1). A trapezoidal surface (8) is provided on the bottom surface of the filter layer (2), and a screen frame (9) communicating with the hydrolysis layer (3) is provided on one side of the bottom of the filter layer (2) at the trapezoidal surface (8).

3. The deep treatment device for printing and dyeing wastewater according to claim 1, wherein: The stirring mechanism (6) further includes a servo motor (61) fixedly arranged on the top of the main housing (1), and the output end of the servo motor (61) is fixedly connected to the rotating rod (62).

4. A deep treatment device for printing and dyeing wastewater according to claim 1, characterized in that: A spring (64) is fixedly arranged around the surface of the rotating rod (62) at the position of the activity plate (63). One end of the spring wire of the spring (64) away from the rotating rod (62) is fixedly connected to the inner wall of the stirring fan (65), and a guiding block (66) is fixedly arranged on the blade surface of the stirring fan (65).

5. The deep treatment device for printing and dyeing wastewater according to claim 1, characterized in that: A bactericide port (13) communicating with the hydrolysis layer (3) is provided on one side of the outer surface of the main housing (1). A sludge pool (10) is provided on the bottom surface of the hydrolysis layer (3), and activated sludge (11) is filled in the sludge pool (10).

6. The deep treatment device for printing and dyeing wastewater according to claim 5, wherein: A water pump (14) is fixedly arranged on the outer surface of the main housing (1) on one side of the bactericide port (13). The suction end of the water pump (14) penetrates through the side wall and is fixedly connected to a filter suction port (15) inside the hydrolysis layer (3), and the discharge end of the water pump (14) penetrates through the side wall and communicates with the distillation layer (4).

7. An advanced treatment device for printing and dyeing wastewater according to claim 1, characterized in that: A conical block (17) is fixedly arranged at the top of the inner wall of the distillation layer (4). A heating wire (18) is fixedly arranged around the conical block (17) on the inner wall of the distillation layer (4). A height limiting port (16) communicating with the static layer (5) is provided around the conical block (17) at the bottom of the distillation layer (4).

8. The deep treatment device for printing and dyeing wastewater according to claim 1, characterized in that: An outlet (19) communicating with the static layer (5) is provided on one side of the outer surface of the main housing (1). An observation window (20) is rotatably arranged above the outlet (19) on the outer surface of the main housing (1).

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