Combined printing ink wastewater treatment device

Abstract

The utility model discloses a combined printing ink wastewater treatment device, which relates to the technical field of printing ink wastewater treatment, and comprises a water chute, the top of the water chute is fixedly provided with a blanking assembly through a support rod and a fixed frame, the blanking assembly is used for scattering a powdery flocculating agent into printing ink wastewater, and the blanking assembly comprises a storage box fixedly connected in the fixed frame; the bottom of the material storage box communicates with a material distribution box, and a plurality of shifting plates are annularly and fixedly connected between the front inner wall and the rear inner wall of the material distribution box at equal intervals in a sleeving mode through first rotating shafts. When the device is used, the powdery flocculating agent pulled out by the pulling plate can be separated in a relatively sealed space and scattered into printing ink wastewater flowing in the water chute through the arranged separation box, so that waste caused by the fact that the powdery flocculating agent drifts around due to blowing of external wind power is effectively avoided, and the effect of reducing flocculating settling is achieved; the purification treatment effect on the printing ink wastewater is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ink wastewater treatment, in particular to a combined ink wastewater treatment device. Background Art

[0002] Ink is an important material used in printing. It displays patterns and texts on substrates through printing or spraying. Ink is generally composed of binders, pigments, fillers, additives and solvents, which are evenly mixed and repeatedly rolled to form a viscous colloidal fluid.

[0003] During the production and application of ink, a certain amount of wastewater will be generated due to the cleaning of equipment. The ever-changing colors of inks make the chemical composition of wastewater quite complex, with high COD, high chroma, and difficult biodegradation. Once it enters the water body, it will cause serious pollution to the water environment. Therefore, the ink wastewater needs to be effectively purified before discharge.

[0004] The Chinese utility model patent with patent application number CN202311581255.7 records a water-based ink wastewater treatment device, which drives the paddle plate to rotate through a rotating shaft to lift the powdered flocculant on the baffle plate and drop it into the ink wastewater to flocculate and settle the harmful components in the ink wastewater, and the rotating shaft is connected to the end of the impeller through a belt and a pulley, so that the impeller rotates after being impacted by the wastewater to drive the paddle plate to rotate and lift the powdered flocculant, and as the wastewater flow rate increases or decreases, the impeller speed will also increase or decrease. As a result, the rotation speed of the paddle also increases or decreases synchronously, so that the amount of flocculant lifted up and dropped into the wastewater can be adjusted in real time according to the size of the wastewater flow rate to ensure the smooth progress of the flocculation sedimentation process. However, in the above-mentioned device, the paddle lifts the flocculant and directly exposes it to the air. If there is a strong wind at this time, the powdered flocculant will be scattered everywhere and it will be difficult for all of it to fall into the wastewater, thereby causing a waste of flocculant, and the amount of flocculant entering the wastewater will be insufficient, thereby reducing the effect of the flocculation sedimentation process, and further reducing the effect of the ink wastewater purification. Summary of the invention

[0005] The purpose of the present application is to provide a combined ink wastewater treatment device to solve the problem proposed in the above-mentioned background technology that the flocculant is lifted up by the paddle and then directly exposed to the air. If there is a strong wind at this time, the powdered flocculant will be scattered everywhere and it will be difficult for all of it to fall into the wastewater, thereby causing a waste of flocculant and causing insufficient amount of flocculant entering the wastewater, thereby reducing the effect of the flocculation sedimentation process.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a combined ink wastewater treatment device, comprising a water guide trough, a feeding assembly for sprinkling powdered flocculant into the ink wastewater is fixedly installed on the top of the water guide trough through a support rod and a fixed frame, the feeding assembly comprises a storage box fixedly connected to the fixed frame, the bottom of the storage box is connected to a distribution box, the distribution box, a plurality of paddles are fixedly sleeved in an annular manner and equidistantly between the front and rear inner walls of the distribution box through a first rotating shaft, the bottom of the distribution box is connected to a first discharge nozzle, and also comprises a feeding box fixedly connected to the top of the water guide trough through a support rod, and also comprises a flocculation flotation tank, the right end of the water guide trough is aligned with the flocculation flotation tank, the top of the flocculation flotation tank is rotatably connected to a water impeller through a support rod and a third rotating shaft, the front and rear ends of the first rotating shaft respectively penetrate the front and rear side walls of the distribution box and are transmission-connected through a first pulley and a first belt and the front and rear ends of the third rotating shaft.

[0007] Preferably, it also includes a coagulation flotation tank, the coagulation flotation tank is connected to a solid-liquid separator through a water supply pipe, the solid-liquid separator is connected to a first contact oxidation tank through a water supply pipe, the first contact oxidation tank is connected to a domestic sewage pipe at the front, the first contact oxidation tank is connected to a water suction pump, the water suction pump is connected to a drain pipe, the drain pipe is aligned with the water guide trough, and also includes a second contact oxidation tank connected to the flocculation flotation tank through a water supply pipe, the first contact oxidation tank and the second contact oxidation tank are both secondary contact oxidation tanks. The advantage of such a setting is that the above-mentioned device can use a coagulation flotation-contact oxidation combined process to purify the ink wastewater, which can effectively improve the treatment effect and ensure the stability of the treatment effect. At the same time, due to the mixing of domestic sewage, the biodegradability of the mixed wastewater is improved, and the secondary biological contact oxidation is more conducive to the change of pollutant load, impact-resistant, and easy to operate and adjust, thereby further improving the purification effect of the ink wastewater and reducing the difficulty of the ink wastewater purification operation.

[0008] Preferably, a feed port is provided on the top of the feed box, and the bottom end of the first discharge nozzle extends into the feed port. A conveyor belt is rotatably connected between the front and rear inner walls of the feed box via two second rotating shafts. A discharge nozzle is connected to the bottom of the feed box. The front and rear ends of the second rotating shaft respectively penetrate the front and rear side walls of the feed box and are transmission-connected to the front and rear ends of the first rotating shaft via a second pulley and a second belt. The advantage of such an arrangement is that the powdered flocculant dropped from the first discharge nozzle can be spread on the conveyor belt and evenly sprinkled into the flowing ink wastewater through the discharge nozzle, thereby effectively improving the mixing uniformity of the flocculant and the ink wastewater and improving the flocculant flotation effect. In addition, the conveying speed of the conveyor belt can change synchronously with the change of the wastewater flow rate, thereby ensuring that the amount of flocculant input is always at an appropriate amount, effectively improving the reliability of the device for ink wastewater purification.

[0009] Preferably, the right side surface of the distribution box is connected to a second discharge nozzle, the top of the feed box is provided with an opening, and the bottom end of the second discharge nozzle is aligned with the opening, so that when the wastewater flow rate is large, the second discharge nozzle can further increase the speed of sprinkling the flocculant, ensuring that the flocculant can be stably and reliably sprinkled into the wastewater in an appropriate amount, further improving the reliability of the device for purifying ink wastewater.

[0010] Preferably, it also includes an auxiliary material distribution mechanism, which includes a pushing plate rotatably connected to the right side surface of the second discharge nozzle through a rotating sleeve and a rotating rod, and also includes a driving unit for driving the pushing plate to swing back and forth, and the bottom end of the pushing plate extends into the interior of the feed box through an opening. The advantage of such a setting is that the powdered flocculant on the top of the conveyor belt can be flattened by the pushing plate, so that the powdered flocculant can fall into the flowing ink wastewater through the discharge nozzle more evenly, thereby further improving the mixing uniformity of the flocculant and the ink wastewater, and further improving the purification efficiency of the ink wastewater.

[0011] Preferably, the driving unit includes two first levers symmetrically fixedly connected at the front and rear ends of the rotating rod, and the adjacent sides of the two first levers are respectively fixedly connected to the two adjacent rotating sleeve sides with torsion springs. The driving unit also includes two motors symmetrically fixedly connected to the front and rear sides of the second discharge nozzle through a connecting plate, and the two motor output shafts are symmetrically fixedly connected to two circular shafts, and two second levers are symmetrically fixedly sleeved on the outer circumferences of the two circular shafts, and the two second levers are respectively in conflict with the two first levers. The advantage of such an arrangement is that it can stably and reliably drive the pushing plate to swing, thereby ensuring that the flocculant is evenly spread on the conveyor belt, thereby ensuring that the flocculant can be evenly sprinkled into the ink wastewater.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] In the utility model, the material distribution box is set up so that the powdered flocculant pushed out by the paddle can be distributed in a relatively sealed space and sprinkled into the ink wastewater flowing in the water guide trough, thereby effectively avoiding the external wind blowing the powdered flocculant to float around and causing waste, and reducing the effect of flocculant sedimentation, thereby improving the effect of ink wastewater purification treatment.

[0014] In the utility model, the powdered flocculant can be evenly spread on the conveyor belt through the rotation of the arranged conveyor belt and the auxiliary material distribution component, thereby ensuring that the flocculant can be evenly sprinkled into the ink wastewater flowing in the water guide trough, effectively improving the flocculant flotation treatment effect of the ink wastewater, and further effectively improving the purification treatment effect of the ink wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a front view of a combined ink wastewater treatment device in an embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the structure of the blanking component in the embodiment of the present application.

[0018] Figure 3 This is a schematic diagram of the first cross-sectional structure of the blanking component in the embodiment of the present application.

[0019] Figure 4 This is a second cross-sectional structural schematic diagram of the blanking component in the embodiment of the present application.

[0020] Figure 5 In the embodiment of this application Figure 2 A magnified schematic diagram of center A.

[0021] Figure 6 In the embodiment of this application Figure 2 A magnified schematic diagram of point B in the middle.

[0022] In the figure: 1, water guide trough; 2, fixed frame; 3, material discharge assembly; 31, material storage box; 32, material distribution box; 321, first rotating shaft; 322, paddle; 323, first material discharge nozzle; 33, material feeding box; 331, material feeding port; 332, second rotating shaft; 333, conveyor belt; 334, material discharge nozzle; 335, opening; 34, water impeller; 35, first belt; 36, second belt; 37, second material discharge nozzle; 38 , auxiliary material distribution mechanism; 381, rotating rod; 382, ​​pushing plate; 383, driving unit; 3831, first lever; 3832, torsion spring; 3833, motor; 3834, round shaft; 3835, second lever; 4, flocculation flotation tank; 5, coagulation flotation tank; 6, solid-liquid separator; 7, first contact oxidation tank; 8, domestic sewage pipe; 9, water suction pump; 91, drainage pipe; 10, second contact oxidation tank. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] Please refer to Figure 1-6 The combined ink wastewater treatment device shown in the figure includes a water guide trough 1, on the top of the water guide trough 1 is fixedly installed a feeding assembly 3 for sprinkling powdered flocculant into the ink wastewater through a support rod and a fixed frame 2, the feeding assembly 3 includes a storage box 31 fixedly connected in the fixed frame 2, the bottom of the storage box 31 is connected to a distribution box 32, the distribution box 32, the front and rear inner walls of the distribution box 32 are annularly and equidistantly fixedly sleeved with a plurality of paddles 322 through a first rotating shaft 321, the bottom of the distribution box 32 is connected to a first discharge nozzle 323, and also includes a feeding box 33 fixedly connected to the top of the water guide trough 1 through a support rod, and also includes a flocculant flotation tank 4, the right end of the water guide trough 1 is aligned with the flocculant flotation tank 4, the top of the flocculant flotation tank 4 is rotatably connected to a water impeller 34 through a support rod and a third rotating shaft, the front and rear ends of the first rotating shaft 321 respectively penetrate the front and rear side walls of the distribution box 32 and are transmission-connected to the front and rear ends of the third rotating shaft through a first pulley and a first belt 35.

[0025] Specifically, the ink wastewater enters the coagulation flotation tank 5 for coagulation flotation after the larger suspended solids are separated, and then enters the solid-liquid separator 6 through the water supply pipe for solid-liquid separation. The sewage after solid separation enters the first contact oxidation tank 7 through the water supply pipe, and then the canteen sewage and domestic sewage are sent to the first contact oxidation tank 7 through the domestic sewage pipe 8, so that the ink wastewater is mixed with the canteen sewage and domestic sewage, and then undergoes secondary biological contact oxidation aeration after anaerobic adjustment. Subsequently, the mixed wastewater is sent into the water guide trough 1 through the water suction pump 9 and the drainage pipe 91 and flows into the flocculation flotation tank 4. At the same time, the flocculants basic aluminum chloride and polyacrylamide are sprinkled into the mixed wastewater through the feeding component 3, so that the mixed wastewater forms alum flowers in the flocculation flotation tank 4 and then floats. Then the mixed wastewater is sent to the second contact oxidation tank 10 and undergoes secondary biological contact oxidation treatment after anaerobic pretreatment adjustment.

[0026] refer to Figure 1, also includes a coagulation flotation tank 5, the coagulation flotation tank 5 is connected to a solid-liquid separator 6 through a water supply pipe, the solid-liquid separator 6 is connected to a first contact oxidation tank 7 through a water supply pipe, the first contact oxidation tank 7 is connected to a domestic sewage pipe 8 at the front, the first contact oxidation tank 7 is connected to a water suction pump 9, the water suction pump 9 is connected to a drainage pipe 91, the drainage pipe 91 is aligned with the water guide trough 1, and also includes a second contact oxidation tank 10 connected to the flocculation flotation tank 4 through a water supply pipe, the first contact oxidation tank 7 and the second contact oxidation tank 10 are both secondary contact oxidation tanks.

[0027] Specifically, the above-mentioned device can use a coagulation flotation-contact oxidation combined process to purify ink wastewater, which can effectively improve the treatment effect and ensure the stability of the treatment effect. At the same time, due to the mixing of domestic sewage, the biodegradability of the mixed wastewater is improved, and the secondary biological contact oxidation is more conducive to the change of pollutant load, impact-resistant, easy to operate and adjust, thereby further improving the purification effect of ink wastewater and reducing the difficulty of ink wastewater purification treatment operations. Example

[0028] According to Example 1, please refer to Figure 4 A feed port 331 is provided on the top of the feed box 33, and the bottom end of the first discharge nozzle 323 extends into the feed port 331. A conveyor belt 333 is rotatably connected between the front and rear inner walls of the feed box 33 through two second rotating shafts 332. A discharge nozzle 334 is connected to the bottom of the feed box 33. The front and rear ends of the second rotating shaft 332 respectively penetrate the front and rear side walls of the feed box 33 and are transmission-connected to the front and rear ends of the first rotating shaft 321 through a second pulley and a second belt 36.

[0029] Specifically, the powdered flocculant dropped from the first discharge nozzle 323 can be spread on the conveyor belt 333 and evenly sprinkled into the flowing ink wastewater through the discharge nozzle 334, thereby effectively improving the mixing uniformity of the flocculant and the ink wastewater and improving the flotation effect of the flocculants. In addition, the conveying speed of the conveyor belt 333 can change synchronously with the change of the wastewater flow rate, thereby ensuring that the amount of flocculant input is always at an appropriate amount, effectively improving the reliability of the device for purifying ink wastewater.

[0030] refer to Figure 2 A second discharge nozzle 37 is connected to the right side surface of the distribution box 32 , an opening 335 is formed on the top of the feeding box 33 , and the bottom end of the second discharge nozzle 37 is aligned with the opening 335 .

[0031] Specifically, when the wastewater flow rate is large, the second discharge nozzle 37 can further increase the speed of the flocculant injection, ensuring that the flocculant can be stably and reliably injected into the wastewater in an appropriate amount, further improving the reliability of the device for purifying ink wastewater.

[0032] refer to Figure 2-6, and also includes an auxiliary material dividing mechanism 38, which includes a push plate 382 rotatably connected to the right side surface of the second discharge nozzle 37 through a rotating sleeve and a rotating rod 381, and also includes a driving unit 383 for driving the push plate 382 to swing back and forth, and the bottom end of the push plate 382 extends into the interior of the feeding box 33 through the opening 335.

[0033] Specifically, the powdered flocculant on the top of the conveyor belt 333 can be flattened by the pushing plate 382, ​​so that the powdered flocculant can fall into the flowing ink wastewater more evenly through the discharge nozzle 334, further improving the mixing uniformity of the flocculant and the ink wastewater, and further improving the purification efficiency of the ink wastewater. Example

[0034] According to Example 1 or 2, please refer to Figure 4-6 The driving unit 383 includes two first levers 3831 symmetrically fixedly connected to the front and rear ends of the rotating rod 381, and the adjacent sides of the two first levers 3831 are respectively fixedly connected to the two adjacent rotating sleeve sides with torsion springs 3832. The driving unit 383 also includes two motors 3833 symmetrically fixedly connected to the front and rear sides of the second discharge nozzle 37 through a connecting plate, and the output axes of the two motors 3833 are symmetrically fixedly connected to two circular shafts 3834, and two second levers 3835 are symmetrically fixedly sleeved on the outer circumferences of the two circular shafts 3834, and the two second levers 3835 are respectively in conflict with the two first levers 3831.

[0035] Specifically, the push plate 382 can be driven to swing stably and reliably to ensure that the flocculant is evenly spread on the conveyor belt 333, thereby ensuring that the flocculant can be evenly sprinkled into the ink wastewater.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined ink wastewater treatment device, comprising a water guide trough (1), a feeding assembly (3) for sprinkling a powdered flocculant into the ink wastewater being fixedly mounted on the top of the water guide trough (1) via a support rod and a fixing frame (2), characterized in that: The unloading assembly (3) comprises a material storage box (31) fixedly connected to a fixed frame (2), the bottom of the material storage box (31) being connected to a material distribution box (32), the material distribution box (32), a plurality of paddles (322) being fixedly sleeved in an annular manner and equidistantly between the front and rear inner walls of the material distribution box (32) via a first rotating shaft (321), the bottom of the material distribution box (32) being connected to a first material discharge nozzle (323), and further comprising a material feeding box (33) fixedly connected to the top of the water guide trough (1) via a support rod, and further comprising a flocculation flotation pool (4), the right end of the water guide trough (1) being aligned with the flocculation flotation pool (4), the top of the flocculation flotation pool (4) being rotatably connected to a water impeller (34) via a support rod and a third rotating shaft, the front and rear ends of the first rotating shaft (321) respectively penetrating the front and rear side walls of the material distribution box (32) and being transmission-connected to the front and rear ends of the third rotating shaft via a first pulley and a first belt (35).

2. A combined ink wastewater treatment device according to claim 1, characterized in that: It also includes a coagulation flotation tank (5), the coagulation flotation tank (5) is connected to a solid-liquid separator (6) through a water supply pipe, the solid-liquid separator (6) is connected to a first contact oxidation tank (7) through a water supply pipe, the first contact oxidation tank (7) is connected to a domestic sewage pipe (8) at the front, the first contact oxidation tank (7) is connected to a water suction pump (9), the water suction pump (9) is connected to a drainage pipe (91), the drainage pipe (91) is aligned with the water guide trough (1), and it also includes a second contact oxidation tank (10) connected to the flocculation flotation tank (4) through a water supply pipe, and the first contact oxidation tank (7) and the second contact oxidation tank (10) are both secondary contact oxidation tanks.

3. A combined ink wastewater treatment device according to claim 2, characterized in that: A feeding port (331) is provided at the top of the feeding box (33), the bottom end of the first discharge nozzle (323) extends into the feeding port (331), a conveyor belt (333) is rotatably connected between the front and rear inner walls of the feeding box (33) via two second rotating shafts (332), a discharge nozzle (334) is connected at the bottom of the feeding box (33), and the front and rear ends of the second rotating shaft (332) respectively penetrate the front and rear side walls of the feeding box (33) and are transmission-connected to the front and rear ends of the first rotating shaft (321) via a second pulley and a second belt (36).

4. A combined ink wastewater treatment device according to claim 3, characterized in that: The right side surface of the material distribution box (32) is connected to a second material discharge nozzle (37), the top of the material feeding box (33) is provided with an opening (335), and the bottom end of the second material discharge nozzle (37) is aligned with the opening (335).

5. A combined ink wastewater treatment device according to claim 4, characterized in that: The auxiliary material distribution mechanism (38) includes a push plate (382) rotatably connected to the right side surface of the second discharge nozzle (37) via a rotating sleeve and a rotating rod (381), and also includes a driving unit (383) for driving the push plate (382) to swing back and forth, and the bottom end of the push plate (382) extends into the interior of the feeding box (33) through the opening (335).

6. A combined ink wastewater treatment device according to claim 5, characterized in that: The driving unit (383) comprises two first levers (3831) symmetrically fixedly connected to the front and rear ends of the rotating rod (381), and torsion springs (3832) are fixedly connected between the adjacent sides of the two first levers (3831) and the adjacent sides of the two rotating sleeves, respectively. The driving unit (383) further comprises two motors (3833) symmetrically fixedly connected to the front and rear sides of the second discharge nozzle (37) through a connecting plate, and the output shafts of the two motors (3833) are symmetrically fixedly connected to two circular shafts (3834), and two second levers (3835) are symmetrically fixedly sleeved on the outer circumferences of the two circular shafts (3834), and the two second levers (3835) are respectively in conflict with the two first levers (3831).

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