Printing ink wastewater treatment device

Abstract

The utility model discloses a printing ink wastewater treatment device, which belongs to the technical field of wastewater treatment and comprises a wastewater pretreatment tank, a wastewater treatment tank, a dosing module, a filter press, a first storage tank, a multi-medium filter, a second storage tank and a backwashing module, during specific implementation, the printing ink wastewater firstly enters the wastewater pretreatment tank for pretreatment, the wastewater enters the wastewater treatment tank after being pretreated in the wastewater pretreatment tank, and the wastewater in the wastewater treatment tank is further purified by dosing through the dosing module; wastewater purified by dosing is led out from the wastewater treatment tank to the filter press to be further treated, the wastewater passes through the filter press and then enters the first storage tank to be settled, then the wastewater is filtered by the multi-medium filter and then enters the second storage tank to be stored, and by detecting the second storage tank, the wastewater can be recycled. After the wastewater treatment reaches the standard, the treatment work can be completed, and if the multi-medium filter is blocked, the multi-medium filter can be backwashed through the backwashing module.

Description

Technical Field

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

[0002] In the production process of water-based ink, a certain amount of wastewater will be generated due to equipment cleaning. The main pollutants in water-based ink wastewater are water-soluble resins (color carriers), cyclic organic matter containing color groups (colorants) and large molecular weight dispersants. In addition, the variety of pigments is complex, resulting in complex products, containing additives of different components, etc. It is a weakly alkaline, high-concentration, high-chroma, and difficult to biodegrade industrial wastewater, which is difficult to treat.

[0003] Therefore, it is necessary to design an ink wastewater treatment device. Utility Model Content

[0004] Purpose of the utility model: An ink wastewater treatment device to solve the above-mentioned problems existing in the prior art.

[0005] In order to solve the above technical problems, the utility model provides an ink wastewater treatment device, including a wastewater pretreatment tank, a wastewater treatment tank, a dosing module, a filter press, a first storage tank, a multi-media filter, a second storage tank and a backwash module; in specific implementation, the ink wastewater first enters the wastewater pretreatment tank for pretreatment, and the wastewater enters the wastewater treatment tank after being pretreated in the wastewater pretreatment tank, and the dosing module is used to dope the wastewater in the wastewater treatment tank so that the wastewater in the wastewater treatment tank is further purified, and the wastewater after the dosing purification is led out from the wastewater treatment tank to the filter press for further treatment, and the wastewater enters the first storage tank for precipitation after passing through the filter press, and then enters the second storage tank for storage after being filtered through the multi-media filter, and the second storage tank is tested, and the treatment work can be completed after the wastewater treatment meets the standards, and if the multi-media filter is blocked, the multi-media filter can be backwashed through the backwash module.

[0006] As a preferred solution, the wastewater pretreatment tank comprises an oil separator, a slag separator and a collection tank. The wastewater passes through the oil separator and the slag separator in turn for oil and slag separation and is then pumped into the wastewater treatment tank by a pump in the collection tank.

[0007] As a preferred solution, the dosing module includes a PAC dosing machine, a PAM dosing machine and an alkaline substance dosing machine.

[0008] As a preferred embodiment, the wastewater treatment tank includes a first reaction tank, a second reaction tank and a third reaction tank. After the wastewater is introduced into the first reaction tank by the pump body, the wastewater reacts with the medicine dosing by the PAC dosing machine and the alkaline substance dosing machine and then enters the second reaction tank. The wastewater in the second reaction tank reacts with the medicine dosing by the PAM dosing machine and then enters the third reaction tank.

[0009] As a preferred embodiment, the backwash module includes a booster pump for pumping wastewater in the first storage tank into the multi-media filter, the output end of the booster pump is connected to one end of a first connecting pipe, the other end of the first connecting pipe is connected to the input end of the multi-media filter, a first valve is provided on the first connecting pipe, the output end of the multi-media filter is connected to one end of a second connecting pipe, the other end of the second connecting pipe is connected to the second storage tank, a second valve is provided on the second connecting pipe, the second storage tank is connected to one end of a first backwash pipe, the other end of the first backwash pipe is connected to the second connecting pipe at a front end of the second valve, a first valve and a backwash pump are provided on the first backwash pipe, the first connecting pipe is located at the rear end of the first valve and is connected to one end of the second backwash pipe, the other end of the second backwash pipe is connected to the collecting tank, and a second backwash valve is provided on the second backwash pipe.

[0010] As a preferred solution, an ultraviolet sterilizer is arranged above the second storage tank.

[0011] As a preferred solution, both the collection tank and the third reaction tank are provided with float balls.

[0012] As a preferred solution, the wastewater in the third reaction tank is pumped into the filter press via a diaphragm pump.

[0013] Beneficial effects: The utility model relates to an ink wastewater treatment device. When the device starts working, the ink wastewater first enters the wastewater pretreatment tank for pretreatment. After the pretreatment in the wastewater pretreatment tank, the wastewater enters the wastewater treatment tank. The dosing module is used to dope the wastewater in the wastewater treatment tank so that the wastewater in the wastewater treatment tank is further purified. The wastewater after dosing and purification is led out from the wastewater treatment tank to the filter press for further treatment. After passing through the filter press, the wastewater enters the first storage tank for sedimentation. Subsequently, the wastewater is filtered through the multi-media filter and then enters the second storage tank for storage. By testing the second storage tank, the treatment work can be completed after the wastewater treatment meets the standards. If the multi-media filter is blocked, the multi-media filter can be backwashed through the backwash module. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0015] The reference numerals in the figure are: grease trap 1, slag trap 2, collection tank 3, pump body 4, PAC dosing machine 5, alkaline substance dosing machine 6, PAM dosing machine 7, first reaction tank 8, second reaction tank 9, float 10, third reaction tank 11, filter press 12, first storage tank 13, booster pump 14, multi-media filter 15, second storage tank 16, ultraviolet sterilizer 17, first valve 18, first connecting pipe 19, diaphragm pump 20, second connecting pipe 21, second valve 22, first backflush pipe 23, first backflush valve 24, second backflush pipe 25, second backflush valve 26, backflush pump 27. DETAILED DESCRIPTION

[0016] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0017] The applicant's research found that ink wastewater is a weakly alkaline, high-concentration, high-chromatic, and difficult to biodegrade industrial wastewater, making it difficult to treat.

[0018] To this end, the utility model provides an ink wastewater treatment device, please refer to Figure 1 The main body of the device includes a wastewater pretreatment tank, a wastewater treatment tank, a dosing module, a filter press 12, a first storage tank 13, a multi-media filter 15, a second storage tank 16 and a backwash module; in specific implementation, the ink wastewater first enters the wastewater pretreatment tank for pretreatment, and the wastewater enters the wastewater treatment tank after being pretreated in the wastewater pretreatment tank. The dosing module is used to dope the wastewater in the wastewater treatment tank so that the wastewater in the wastewater treatment tank is further purified. The wastewater after dosing and purification is led out from the wastewater treatment tank to the filter press 12 for further treatment. After passing through the filter press 12, the wastewater enters the first storage tank 13 for precipitation, and then the wastewater is filtered through the multi-media filter 12 and enters the second storage tank 16 for storage. By detecting the second storage tank 16, the treatment work can be completed after the wastewater treatment meets the standards. If the multi-media filter 12 is blocked, the multi-media filter 12 can be backwashed through the backwash module.

[0019] Preferably, the wastewater pretreatment tank comprises an oil separator 1, a slag separator 2 and a collection tank 3. The wastewater passes through the oil separator 1 and the slag separator 2 in sequence for oil and slag separation and is then pumped into the wastewater treatment tank by a pump body 4 in the collection tank 3.

[0020] Preferably, the dosing module includes a PAC dosing machine 5 , a PAM dosing machine 7 and an alkaline substance dosing machine 6 .

[0021] Furthermore, the wastewater treatment tank includes a first reaction tank 8, a second reaction tank 9 and a third reaction tank 11. After the wastewater is introduced into the first reaction tank 8 by the pump body 4, the wastewater reacts with the medicine dosed by the PAC dosing machine 5 and the alkaline substance dosing machine 7 and then enters the second reaction tank 9. The wastewater in the second reaction tank 9 reacts with the medicine dosed by the PAM dosing machine 7 and then enters the third reaction tank 11.

[0022] Furthermore, the backwash module includes a booster pump 14 for pumping wastewater in the first storage tank 13 into the multi-media filter 15, the output end of the booster pump 14 is connected to one end of a first connecting pipe 19, the other end of the first connecting pipe 19 is connected to the input end of the multi-media filter 15, the first connecting pipe 19 is provided with a first valve 18, the output end of the multi-media filter 15 is connected to one end of a second connecting pipe 21, the other end of the second connecting pipe 21 is connected to the second storage tank 16, the second connecting pipe 21 is provided with a second valve 22, the second storage tank 16 is connected to one end of a first backwash pipe 23, the other end of the first backwash pipe 23 is connected to the second connecting pipe 21 at the second valve 22 The front end is connected, the first backwash pipe 23 is provided with a first valve 24 and a backwash pump 27, the first connecting pipe 19 is located at the rear end of the first valve 18 and is connected to one end of the second backwash pipe 25, the other end of the second backwash pipe 25 is connected to the collecting tank 3, and the second backwash valve 26 is provided on the second backwash pipe 25; when the multi-media filter 15 is blocked, the first valve 18 and the second valve 22 are closed, and the first backwash valve 24 and the second backwash valve 26 are opened, and the backwash pump 27 is started at the same time, and the wastewater in the second storage tank 16 is poured into from the output end of the multi-media filter 15, and flows out from the input end of the multi-media filter 15, and enters the collecting tank 3 through the second backwash pipe 25.

[0023] Furthermore, an ultraviolet sterilizer 17 is disposed above the second storage tank 16 , and the ultraviolet sterilizer 17 can sterilize the wastewater in the second storage tank 16 .

[0024] Preferably, both the collecting tank 3 and the third reaction tank 11 are provided with a float 10 , and the float 10 can facilitate the staff to observe the water levels in the collecting tank 3 and the third reaction tank 11 .

[0025] Preferably, the wastewater in the third reaction tank 11 is pumped into the filter press 12 via a diaphragm pump 20 .

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An ink wastewater treatment device, characterized in that: include: Wastewater pretreatment tank; A wastewater treatment tank, used to further treat the wastewater drawn from the wastewater pretreatment tank; A dosing module, used for dosing the wastewater treatment pool with drugs to further purify the wastewater; A filter press for further treating the wastewater drawn from the wastewater treatment tank; A first storage tank, used for temporarily storing wastewater drawn from the filter press; A multi-media filter for further treating the wastewater drawn from the first storage tank; A second storage tank, used for temporarily storing wastewater drawn from the multi-media filter; A backwash module, used for backwashing the multi-media filter; The wastewater pretreatment tank includes: a grease trap, a slag trap and a collection tank. The wastewater passes through the grease trap and the slag trap in sequence and is then pumped into the wastewater treatment tank by a pump in the collection tank. The wastewater treatment tank includes: a first reaction tank, a second reaction tank and a third reaction tank; the dosing module includes: a PAC dosing machine, a PAM dosing machine and an alkaline substance dosing machine; after the wastewater is introduced into the first reaction tank by the pump body, the wastewater reacts with the drugs dosed by the PAC dosing machine and the alkaline substance dosing machine and then enters the second reaction tank, and the wastewater in the second reaction tank reacts with the drugs dosed by the PAM dosing machine and then enters the third reaction tank.

2. The ink wastewater treatment device according to claim 1, characterized in that: The backwash module comprises: A booster pump, used to pump the wastewater in the first storage tank into the multi-media filter; A first connecting pipe, one end of which is connected to the output end of the booster pump and the other end of which is connected to the input end of the multi-media filter; A first valve, disposed on the first connecting pipe; A second connecting pipe, one end of which is connected to the output end of the multi-media filter and the other end of which is connected to the second storage tank; A second valve, disposed on the second connecting pipe; a first recoil pipe, one end of which is connected to the second storage tank, and the other end of which is connected to the second connecting pipe at the front end of the second valve; A first recoil valve, disposed on the first recoil pipe; A recoil pump, arranged on the first recoil pipe; A second backwash pipe, one end of which is connected to the first connecting pipe at the rear end of the first valve, and the other end of which is connected to the collection tank; The second recoil valve is arranged on the second recoil pipe.

3. The ink wastewater treatment device according to claim 1, characterized in that: An ultraviolet sterilizer is arranged above the second storage tank.

4. The ink wastewater treatment device according to claim 1, characterized in that: Floating balls are arranged in the collecting tank and the third reaction tank.

5. The ink wastewater treatment device according to claim 1, characterized in that: The wastewater in the third reaction tank is pumped into the filter press through a diaphragm pump.

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