Printing wastewater treatment equipment

Abstract

The utility model relates to printing wastewater treatment equipment, and belongs to the technical field of printing wastewater treatment, the printing wastewater treatment equipment comprises a wastewater treatment pond, three separation cavities are formed in the wastewater treatment pond, main shafts are rotatably mounted in the separation cavities, stirring paddles are fixedly connected to the outer sides of the main shafts at equal intervals, and a conveying assembly is arranged at the top of the wastewater treatment pond. The printing wastewater treatment device has the beneficial effects that through the arrangement of the pump body, internal communication between the partition cavities and the adjacent partition cavities can be achieved, the multiple stirring paddles are driven to rotate under rotation of the main shaft, and then full mixing of printing wastewater and chemicals can be achieved; according to the invention, the two partition cavities are arranged in a sealed manner, so that the fully mixed wastewater can be conveyed from the first partition cavity to the adjacent partition cavity, and the two partition cavities are arranged in a sealed manner, so that the wastewater in the first partition cavity is difficult to overflow into the adjacent partition cavity, and the wastewater can be discharged into the next partition cavity through the pump body only after being fully mixed.

Description

Technical Field

[0001] This application relates to the field of printing wastewater treatment technology, and in particular to a printing wastewater treatment device. Background Technology

[0002] Ink wastewater mainly originates from the ink production and printing equipment cleaning process. Its main pollutants are cyclic organic compounds with chromophores (pigments), water-soluble acrylic resins (carriers), and high molecular weight alcohol or phenyl dispersants. Because ink wastewater is composed of high concentrations of organic matter and has a complex composition, it is characterized by high COD, high color intensity, and poor biodegradability. Once it enters water bodies, it will cause serious pollution to the aquatic environment.

[0003] A search revealed a Chinese patent for a wastewater treatment device for printing ink (authorization announcement number CN213537549U), which includes a wastewater treatment tank and a dosing tank. The dosing tank and the wastewater treatment tank are connected by a dosing pipeline. The wastewater treatment tank has an inlet and an outlet on both sides, and a filter frame is installed at the inlet. The bottom of the filter frame has filter holes, and the upper end of the filter frame is movably connected to the upper surface of the wastewater treatment tank. This patented technology can reduce the number of times the mixer needs to be repaired and replaced, and extend the service life of the mixer and other equipment.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the wastewater treatment tank is divided into multiple separate mixing chambers connected at the top by partitions. After the printing wastewater enters a mixing chamber, it will rotate under the action of the agitator, forming a vortex-like phenomenon. This causes the newly entered wastewater to flow directly into the next mixing chamber from the top, resulting in limited mixing effect. After the printing wastewater reacts with the reagents, it may displace or generate impurities that settle at the bottom of the divided chambers. The above-mentioned device does not have a separate sewage discharge structure, making it difficult to clean the impurities. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide a printing wastewater treatment device.

[0006] The technical solution of this application is as follows: A printing wastewater treatment device includes a wastewater treatment tank. The wastewater treatment tank has three compartments inside. A main shaft is rotatably installed inside each compartment. A stirring paddle is fixedly connected at equal intervals to the outer side of each main shaft. A conveying assembly is provided at the top of the wastewater treatment tank. The conveying assembly includes two pump bodies fixedly connected to the top of the wastewater treatment tank. A connecting pipe is fixedly connected to the input end of each pump body. The output end of each pump body extends into the interior of the adjacent compartment. An external thread is provided on the outer side of the connecting pipe. A dust cover is threadedly connected to the external thread. A filter screen is fixedly connected inside the dust cover.

[0007] By adopting the above technical solution, the internal communication between the diaphragm and its adjacent diaphragms can be achieved through the setting of the pump body, and the rotation of the main shaft drives multiple stirring paddles to rotate, thereby achieving full mixing of printing wastewater and reagents.

[0008] In a preferred embodiment, the wastewater treatment tank is provided with a sewage discharge assembly located below the partition. The sewage discharge assembly includes a main sewage pipe installed inside the wastewater treatment tank and a branch pipe fixedly connected inside the wastewater treatment tank and located below the partition.

[0009] By adopting the above technical solution, multiple butterfly plates can be rotated by rotating the shaft, so that the butterfly plates are perpendicular to the ground, and the impurities that are replaced or generated can flow into the main sewage pipe for discharge through the branch pipe.

[0010] In a preferred embodiment, the sewage discharge assembly further includes a rotating shaft rotatably connected inside the wastewater treatment tank, and each branch pipe is rotatably connected to a butterfly plate. The rotating shaft passes through the interior of the branch pipe and is fixedly connected to the butterfly plate.

[0011] By adopting the above technical solution and setting up the main sewage pipe, wastewater can be discharged quickly.

[0012] In a preferred embodiment, the main sewage pipe and the branch pipes are interconnected internally, the main sewage pipe is inclined, and the top of the wastewater treatment tank is hinged with three tank covers.

[0013] By adopting the above technical solution, the box cover is designed to allow staff to open it and use a water spray gun to clean impurities inside the compartment.

[0014] In a preferred embodiment, a drive motor a is fixedly installed inside the wastewater treatment tank and above the partition. The output shaft of the drive motor a extends into the interior of the partition and is fixedly connected to the corresponding main shaft.

[0015] By adopting the above technical solution, the rotation of the output shaft of the drive motor a can drive the main shaft to rotate.

[0016] In a preferred embodiment, an inlet is fixedly connected to the outside of the wastewater treatment tank, a filter frame is fitted inside the inlet, and the butterfly plate is fitted to the inner wall of the branch pipe.

[0017] By adopting the above technical solution and setting the filter frame, particulate impurities inside the printing wastewater can be initially filtered.

[0018] In a preferred embodiment, a drive motor b is fixedly installed on the outside of the wastewater treatment tank, and the output shaft of the drive motor b is fixedly connected to the rotating shaft.

[0019] By adopting the above technical solution and by setting up the drive motor b, a power source can be provided for the rotation of the shaft.

[0020] In a preferred embodiment, the inner wall of the partition is provided with an inclined surface to facilitate drainage, and a drain pipe is fixedly connected to the rear side of the wastewater treatment tank.

[0021] By adopting the above technical solution and setting up a drain pipe, the mixed wastewater can be discharged.

[0022] Compared with the prior art, the advantages and positive effects of this application are as follows:

[0023] 1. In this application, the pump body enables internal communication between the diaphragm and its adjacent diaphragms. The rotation of the main shaft drives multiple stirring paddles to rotate, thereby achieving thorough mixing of printing wastewater and reagents. This allows the thoroughly mixed wastewater to be transferred from the first diaphragm to the adjacent diaphragm. Both diaphragms are sealed, making it difficult for wastewater in the first diaphragm to overflow into the adjacent diaphragm. Thus, the wastewater can only be discharged to the next diaphragm after it has been thoroughly mixed.

[0024] 2. In this application, multiple butterfly plates can be rotated by rotating the shaft, so that the butterfly plates are perpendicular to the ground, and the impurities that are replaced or generated can flow into the main sewage pipe for discharge through the branch pipe. The cover is provided so that the staff can open the cover and use a water spray gun to clean the impurities in the compartment. Attached Figure Description

[0025] Figure 1 This application provides an overall perspective view of a printing wastewater treatment device;

[0026] Figure 2 This application provides a half-sectional view of a printing wastewater treatment device;

[0027] Figure 3 This application provides a schematic diagram of the sewage discharge component of a printing wastewater treatment device;

[0028] Figure 4 This application provides a schematic diagram of the conveying component of a printing wastewater treatment device.

[0029] Legend: 1. Wastewater treatment tank; 2. Inlet; 3. Tank cover; 4. Drive motor a; 5. Conveying assembly; 501. Pump body; 502. Connecting pipe; 503. External thread; 504. Dust cover; 505. Filter screen; 6. Drive motor b; 7. Sewage discharge assembly; 701. Main sewage discharge pipe; 702. Branch pipe; 703. Rotating shaft; 704. Butterfly plate; 8. Chamber; 9. Agitator; 10. Main shaft; 11. Filter frame. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] Reference Figure 1-4 A printing wastewater treatment device includes a wastewater treatment tank 1. The wastewater treatment tank 1 has three internal chambers 8. A main shaft 10 is rotatably mounted inside each chamber 8. A stirring paddle 9 is fixedly connected at equal intervals to the outer side of each main shaft 10. A conveying assembly 5 is located at the top of the wastewater treatment tank 1. The conveying assembly 5 includes two pump bodies 501 fixedly connected to the top of the wastewater treatment tank 1. A connecting pipe 502 is fixedly connected to the input end of each pump body 501. The output end of each pump body 501 extends into the interior of an adjacent chamber 8. An external thread 503 is provided on the outer side of the connecting pipe 502, and a dust cover 504 is threadedly connected to the external thread 503. The dust cover 504 has a filter screen 505 fixedly connected inside. Through the setting of the pump body 501, the internal communication between the partition 8 and its adjacent partition 8 can be realized. Under the rotation of the main shaft 10, multiple stirring paddles 9 are driven to rotate, thereby realizing the full mixing of printing wastewater and reagents. The fully mixed wastewater can be transferred from the first partition 8 to the adjacent partition 8. Both partitions 8 are set with a sealed configuration, so that the wastewater in the first partition 8 is difficult to overflow into the adjacent partition 8. Therefore, the wastewater can only be discharged to the next partition 8 through the pump body 501 after it is fully mixed.

[0032] Specifically, the wastewater treatment tank 1 is equipped with a sewage discharge assembly 7, which is located below the partition 8. The sewage discharge assembly 7 includes a main sewage pipe 701 installed inside the wastewater treatment tank 1, and a branch pipe 702 fixedly connected inside the wastewater treatment tank 1 and below the partition 8. By rotating the shaft 703, multiple butterfly plates 704 can rotate, thereby making the butterfly plates 704 perpendicular to the ground. This allows the displaced or generated impurities to flow into the main sewage pipe 701 through the branch pipe 702 for discharge. The sewage discharge assembly 7 also includes a shaft 703 rotatably connected inside the wastewater treatment tank 1, and the branch pipe 702... Each part is rotatably connected to a butterfly plate 704, and the rotating shaft 703 passes through the interior of the branch pipe 702. When the butterfly plate 704 is parallel to the ground, it can block the flow pipe of the branch pipe 702, thereby controlling the mixing time of the agent and wastewater. It is also fixedly connected to the butterfly plate 704. The interiors of the main sewage pipe 701 and the branch pipe 702 are interconnected. The main sewage pipe 701 is inclined to facilitate the rapid discharge of wastewater. The top of the wastewater treatment tank 1 is hinged with three box covers 3. The box covers 3 allow the staff to open the box covers 3 and use a water spray gun to clean the impurities in the compartment 8.

[0033] Specifically, drive motors a4 are fixedly installed inside the wastewater treatment tank 1 and above the partition 8. The output shafts of drive motors a4 extend into the partition 8 and are fixedly connected to the corresponding main shafts 10. The rotation of the output shafts of drive motors a4 drives the main shafts 10 to rotate. An inlet 2 is fixedly connected to the outside of the wastewater treatment tank 1. A filter frame 11 is installed inside the inlet 2. The filter frame 11 can initially filter particulate impurities inside the printing wastewater. The butterfly plate 704 is attached to the inner wall of the branch pipe 702. A drive motor b6 is fixedly installed on the outside of the wastewater treatment tank 1. The drive motor b6 provides power for the rotation of the rotating shaft 703. The output shaft of drive motor b6 is fixedly connected to the rotating shaft 703. The inner wall of the partition 8 is provided with a slope to facilitate drainage. A drain pipe is fixedly connected to the rear side of the wastewater treatment tank 1 to discharge the mixed wastewater.

[0034] Working principle: First, the operator can use the inlet 2 to introduce printing wastewater into the wastewater treatment tank 1. The filter frame 11 initially filters out particulate impurities from the wastewater. Then, the external controller starts the drive motor a4. The rotation of the output shaft of drive motor a4 drives the main shaft 10, which in turn drives multiple agitators 9. Simultaneously, the cover 3 allows chemicals to be added to the corresponding compartments 8, achieving thorough mixing of the printing wastewater and chemicals. Finally, the pump body 501 is controlled... Upon startup, internal communication between the first chamber 8 and its adjacent chamber 8 can be established, allowing the fully mixed wastewater to be transferred from the first chamber 8 to the adjacent chamber 8. Finally, the treated wastewater can be discharged through the drain pipe. The rotation of the output shaft of the drive motor b6 can drive the rotating shaft 703 to rotate, which in turn drives multiple butterfly plates 704 to rotate, thus ensuring that the butterfly plates 704 are perpendicular to the ground. This allows the replaced or generated impurities to flow into the main sewage pipe 701 through the branch pipe 702 for discharge.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printing wastewater treatment device, comprising a wastewater treatment tank (1), characterized in that: The wastewater treatment tank (1) has three compartments (8) inside. A main shaft (10) is rotatably installed inside each compartment (8). A stirring paddle (9) is fixedly connected at equal intervals to the outside of each main shaft (10). A conveying assembly (5) is provided on the top of the wastewater treatment tank (1). The conveying assembly (5) includes two pump bodies (501) fixedly connected to the top of the wastewater treatment tank (1). A connecting pipe (502) is fixedly connected to the input end of the pump body (501). The output end of the pump body (501) extends into the interior of the adjacent compartment (8). An external thread (503) is provided on the outside of the connecting pipe (502). A dust cover (504) is threadedly connected to the external thread (503). A filter screen (505) is fixedly connected inside the dust cover (504).

2. The printing wastewater treatment equipment according to claim 1, characterized in that: The wastewater treatment tank (1) is equipped with a sewage discharge assembly (7), which is located below the partition (8). The sewage discharge assembly (7) includes a main sewage discharge pipe (701) installed inside the wastewater treatment tank (1), and a branch pipe (702) is fixedly connected inside the wastewater treatment tank (1) and below the partition (8).

3. The printing wastewater treatment equipment according to claim 2, characterized in that: The sewage discharge assembly (7) also includes a rotating shaft (703) rotatably connected inside the wastewater treatment tank (1). Each branch pipe (702) is rotatably connected to a butterfly plate (704). The rotating shaft (703) passes through the inside of the branch pipe (702) and is fixedly connected to the butterfly plate (704).

4. The printing wastewater treatment equipment according to claim 2, characterized in that: The main sewage pipe (701) and the branch pipe (702) are interconnected. The main sewage pipe (701) is inclined. The top of the wastewater treatment tank (1) is hinged with three box covers (3).

5. The printing wastewater treatment equipment according to claim 1, characterized in that: A drive motor a (4) is fixedly installed inside the wastewater treatment tank (1) and above the partition (8). The output shaft of the drive motor a (4) extends into the partition (8) and is fixedly connected to the corresponding main shaft (10).

6. The printing wastewater treatment equipment according to claim 3, characterized in that: The wastewater treatment tank (1) is fixedly connected to an inlet (2), and a filter frame (11) is installed inside the inlet (2). The butterfly plate (704) is attached to the inner wall of the branch pipe (702).

7. The printing wastewater treatment equipment according to claim 3, characterized in that: A drive motor b (6) is fixedly installed on the outside of the wastewater treatment tank (1), and the output shaft of the drive motor b (6) is fixedly connected to the rotating shaft (703).

8. The printing wastewater treatment equipment according to claim 1, characterized in that: The inner wall of the diaphragm (8) is provided with an inclined surface to facilitate drainage, and a drain pipe is fixedly connected to the rear side of the wastewater treatment tank (1).

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