CN114249448A - Carton packaging and printing wastewater treatment method and device - Google Patents

Carton packaging and printing wastewater treatment method and device Download PDF

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Publication number
CN114249448A
CN114249448A CN202111646853.9A CN202111646853A CN114249448A CN 114249448 A CN114249448 A CN 114249448A CN 202111646853 A CN202111646853 A CN 202111646853A CN 114249448 A CN114249448 A CN 114249448A
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CN
China
Prior art keywords
net
oil removing
box
filter
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111646853.9A
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Chinese (zh)
Inventor
欧国富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Yizhizhan Environmental Protection Technology Co ltd
Original Assignee
Chongqing Yizhizhan Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202111646853.9A priority Critical patent/CN114249448A/en
Publication of CN114249448A publication Critical patent/CN114249448A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/20Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention relates to the technical field of carton packaging production, in particular to a method and a device for processing carton packaging and printing wastewater; the device comprises a working frame, an oil removing tank, an impurity removing net, a connecting plate, a power assembly and an auxiliary assembly; the oil removing box is fixedly connected with the working frame, the impurity removing net is positioned inside the oil removing box, the connecting plate is fixedly connected with the impurity removing net, and the auxiliary assembly is connected with the working frame; the power assembly comprises fixing rings, hooks, traction members and guide members, the fixing rings are fixedly connected with the connecting plate, the number of the fixing rings is two, the two fixing rings are respectively distributed oppositely, one sides of the two fixing rings, far away from the connecting plate, are respectively detachably connected with the hooks, one sides of the two hooks, far away from the fixing rings, are respectively connected with the traction members, and the guide members are connected with the impurity removal net; the froth is once only fished out to need not manual operation, effectively improve work efficiency.

Description

Carton packaging and printing wastewater treatment method and device
Technical Field
The invention relates to the technical field of carton packaging production, in particular to a method and a device for processing carton packaging and printing wastewater.
Background
In the process of carton packing production, need print the surface of carton, can produce waste water among the printing process, the direct discharge of waste water can lead to environmental pollution, so need handle waste water and make it discharge after reaching emission standard again.
The principle of the method is that a large amount of micro bubbles are generated in water to form a three-phase mixture of water, gas and a substance to be removed, and under the combined action of a plurality of forces such as interfacial tension, bubble rising buoyancy, hydrostatic pressure difference and the like, the micro bubbles are promoted to be adhered to the removed micro oil drops, and then the micro bubbles float to the water surface due to the fact that the density of the adhered body is smaller than that of the water, so that oil particles in the water are separated and removed.
The existing carton packaging wastewater treatment device generally needs a worker to hold the fishing net to fish out floating foam generated after reaction, and the manual fishing consumes longer time, so that the working efficiency is low.
Disclosure of Invention
The invention aims to provide a method and a device for treating carton packaging and printing wastewater, and aims to solve the technical problems that in the prior art, a worker generally needs to hold a fishing net by hand to fish floating foam generated after reaction, the manual fishing takes longer time, and the working efficiency is low.
In order to achieve the purpose, the carton packaging printing wastewater treatment device comprises a working frame, an oil removal tank, an impurity removal net, a connecting plate, a power assembly and an auxiliary assembly, wherein the working frame is provided with a plurality of oil removal grooves;
the oil removing box is fixedly connected with the working frame and is positioned on one side of the working frame, the impurity removing net is positioned inside the oil removing box, the connecting plate is fixedly connected with the impurity removing net and is positioned on one side of the impurity removing net close to the oil removing box, and the auxiliary assembly is connected with the working frame;
the power component comprises a fixing ring, a hook, a traction member and a guide member, the fixing ring is fixedly connected with a connecting plate and is located at one side of the impurity removing net, the quantity of the fixing ring is two, the fixing ring is respectively distributed relatively and is two, the fixing ring is far away from one side of the connecting plate, the hook is respectively connected with the hook and the hook, the hook is far away from one side of the fixing ring is respectively connected with the traction member, and the guide member is connected with the impurity removing net.
The traction component comprises connecting ropes, a roller and a driving part, one sides of the two hooks, which are far away from the fixing ring, are respectively and fixedly connected with the connecting ropes, one ends of the two connecting ropes, which are far away from the hooks, are respectively connected with the roller, and the roller is positioned outside the oil removing tank; the driving part is fixedly connected with the oil removing box.
The guide member comprises a sliding block and a sealing gasket, and the sliding block is fixedly connected with the impurity removing net and is in sliding connection with the oil removing box; the sealing gasket is fixedly connected with the oil removing tank and is positioned between the oil removing tank and the sliding block.
The auxiliary assembly comprises a connecting pipe, a filter box and a filter member, wherein two ends of the connecting pipe are respectively communicated with the oil removing box and the filter box; the filter box is fixedly connected with the working frame and is positioned below the oil removing box; the filter member is connected to the filter box.
The filter component comprises a filter plate and a valve, and the filter plate is detachably connected with the filter box and is positioned inside the filter box; the valve is arranged on the connecting pipe.
A method for treating printing wastewater of carton packaging comprises the following steps:
introducing the wastewater into an oil removal tank, and separating oily substances in the wastewater by an air floatation method;
after the separation is finished, starting a motor, driving a roller to rotate, winding a connecting rope, driving an impurity removal net to move to the top end of the wastewater, and enabling floating foam to enter the impurity removal net;
leading the waste water without froth into a filter tank for further filtering;
taking out the impurity removing net, and treating the floating foam in the impurity removing net;
and after treatment, the impurity removal net is placed back into the oil removal tank, the roller is reversely driven, and the impurity removal net is driven to reset to wait for next use.
A carton package is suitable for the carton package printing wastewater treatment device.
The carton packaging and printing wastewater treatment method and the device thereof are supported by the working frame, the oil removing box is used for containing wastewater, the impurity removing net is arranged inside the oil removing box and is connected with the connecting plate, the two sides of the connecting plate are connected with the fixing rings, the fixing rings are hung with the hooks, the hooks are connected with the traction member, the traction member provides power for the hooks to drive the fixing rings and the impurity removing net to move upwards and upwards to the upper part of the wastewater, the floating foam of the wastewater after the treatment by the air floatation method enters the impurity removing net at the moment, the floating foam is fished out at one time, the guide member guides the upwards movement of the impurity removing net to promote the fishing effect to be better, the auxiliary assembly further filters the wastewater to further fish the floating foam at one time without manual operation, effectively improving the working efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a carton packing printing wastewater treatment device of the invention.
Fig. 2 is a schematic view of the structure of the filter member of the present invention.
Fig. 3 is a schematic structural view of the fixing ring of the present invention.
Fig. 4 is an enlarged view of fig. 1 at a of the present invention.
Fig. 5 is an enlarged view of the invention at B of fig. 2.
Fig. 6 is a step diagram of the method for treating the printing wastewater of the carton package according to the present invention.
1-a working frame, 2-an oil removing tank, 3-an impurity removing net, 4-a connecting plate, 10-a power assembly, 11-a fixed ring, 12-a hook, 13-a traction member, 14-a guide member, 20-an auxiliary assembly, 21-a connecting pipe, 22-a filter box, 23-a filter member, 131-a connecting rope, 132-a roller, 133-a driving part, 134-a baffle, 141-a sliding block, 142-a sealing gasket, 231-a filter plate, 232-a valve, 1331-a mounting seat, 1332-a motor and 1333-a guide wheel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a waste water treatment device for carton packaging and printing, which comprises a work frame 1, an oil removing box 2, an impurity removing net 3, a connecting plate 4, a power assembly 10 and an auxiliary assembly 20;
the oil removing box 2 is fixedly connected with the working frame 1 and is positioned on one side of the working frame 1, the impurity removing net 3 is positioned inside the oil removing box 2, the connecting plate 4 is fixedly connected with the impurity removing net 3 and is positioned on one side of the impurity removing net 3 close to the oil removing box 2, and the auxiliary assembly 20 is connected with the working frame 1;
power component 10 includes solid fixed ring 11, couple 12, traction member 13 and guide member 14, gu fixed ring 11 with connecting plate 4 fixed connection, and be located connecting plate 4 is kept away from one side of edulcoration net 3, just gu fixed ring 11's quantity is two, two gu fixed ring 11 is relative distribution respectively, two gu fixed ring 11 keeps away from one side of connecting plate 4 is dismantled respectively and is connected with couple 12, two couple 12 is kept away from gu fixed ring 11's one side is connected with respectively traction member 13, guide member 14 with edulcoration net 3 is connected.
In this embodiment, the working frame 1 is used for supporting, the oil removing tank 2 is installed on the working frame 1 for guiding wastewater, the impurity removing net 3 is disposed inside the oil removing tank 2 and connected to the connecting plate 4, the connecting plate 4 is attached to the inner wall of the oil removing tank 2, the number of the fixing rings 11 is two, the two fixing rings 11 are respectively disposed at two sides of the connecting plate 4, the hooks 12 are respectively hung on the two fixing rings 11, the hooks 12 are connected with the traction member 13, the guide member 14 is connected with the impurity removing net 3 to guide the movement of the impurity removing net 3, so that the hooks 12 are powered by the traction member 13 to pull the hooks 12 upward, and further the fixing rings 11, the connecting plate 4 and the impurity removing net 3 are driven to move upward, arrange the top of waste water in, at this moment, the waste water float foam that has handled through the air floatation method floats on the top of waste water, floats the foam and gets into on the edulcoration net 3, realize once only fishing out float foam, it is leading-in to fish out waste water after floating the foam and leading-in carry out further filtration in the auxiliary assembly 20, then take off edulcoration net 3, it is right edulcoration net 3 clears up, puts into edulcoration net 3 again except that the inside of oil tank 2 conveniently carries out next use, and then once only fishes out float foam, improves work efficiency greatly.
Further, referring to fig. 1, 3 and 4, the traction member 13 includes a connection rope 131, a roller 132 and a driving part 133, one side of the two hooks 12 away from the fixing ring 11 is fixedly connected with the connection rope 131, one end of the two connection ropes 131 away from the hooks 12 is connected with the roller 132, and the roller 132 is located outside the oil removing tank 2; the driving part 133 is fixedly connected with the oil removing tank 2.
Further, referring to fig. 1 and 4, the driving component 133 includes a mounting seat 1331, a motor 1332 and a guide wheel 1333, wherein the mounting seat 1331 is fixedly connected to the oil removing tank 2 and rotatably connected to the drum 132; the output end of the motor 1332 is fixedly connected with the roller 132; the guide wheel 1333 is rotatably connected with the fuel removing tank 2 and is positioned on one side of the fuel removing tank 2 close to the connecting rope 131.
Further, referring to fig. 3 and 5, the guiding member 14 includes a sliding block 141 and a sealing pad 142, and the sliding block 141 is fixedly connected with the fuel removing net 3 and slidably connected with the fuel removing tank 2; the sealing gasket 142 is fixedly connected with the oil removing tank 2 and is positioned between the oil removing tank 2 and the sliding block 141.
Further, referring to fig. 1, the traction member 13 further includes a baffle 134, and the baffle 134 is fixedly connected to the drum 132 and is located on a side of the drum 132 close to the connection rope 131.
In this embodiment, the two hooks 12 are respectively connected with the connecting rope 131, the connecting rope 131 extends out of the oil removing tank 2 and is connected with the drum 132, the drum 132 is rotatably connected with the oil removing tank 2 through the mounting seat 1331, the output end of the motor 1332 is connected with the drum 132 to drive the drum 132 to rotate, so as to wind the connecting rope 131, the guide wheel 1333 is arranged above the oil removing tank 2 and can rotate on the oil removing tank 2, the connecting rope 131 bypasses the guide wheel 1333 and is then connected with the drum 132, and the guide wheel 1333 guides the connecting rope 131; the sliding blocks 141 are fixedly connected to two sides of the impurity removing net 3 and are in sliding connection with the oil removing tank 2 to guide the movement of the impurity removing net 3, and the sealing gaskets 142 are made of rubber materials and are positioned between the oil removing tank 2 and the sliding blocks 141 to prevent waste water from entering the lower part of the impurity removing net 3 without being subjected to oil removal; so far, firstly, the wastewater in the oil removing tank 2 is subjected to air flotation separation, oily substances float on the top of the wastewater, then the motor 1332 drives the roller 132 to rotate, the roller 132 winds the connecting rope 131, the baffle 134 is arranged on the roller 132, the baffle 134 limits the winding of the connecting rope 131, so that the winding effect is better, the connecting rope 131 drives the hook 12, the fixing ring 11, the connecting plate 4 and the impurity removing net 3 to move upwards, so that the impurity removing net 3 moves upwards to the top of the wastewater, floating foam enters the impurity removing net 3 at the moment, then the wastewater without floating foam is guided into the auxiliary assembly 20 for further filtration, then the impurity removing net 3 is taken down, the impurity removing net 3 is cleaned, then the impurity removing net 3 is put into the oil removing tank 2, and the roller 132 is reversely rotated, make initial position is arranged in to edulcoration net 3, makes things convenient for next use, the guide block is in edulcoration net 3 removes the in-process and plays the guide effect, makes the result of use better, and then once only salvages the froth, and need not artifical the salvage, effectively provides work efficiency.
Further, referring to fig. 2 and 3, the auxiliary assembly 20 includes a connecting pipe 21, a filter tank 22 and a filter member 23, and both ends of the connecting pipe 21 are respectively communicated with the fuel removing tank 2 and the filter tank 22; the filter box 22 is fixedly connected with the working frame 1 and is positioned below the oil removing box 2; the filter member 23 is connected to the filter tank 22.
Further, referring to fig. 2 and 3, the filter member 23 includes a filter plate 231 and a valve 232, the filter plate 231 is detachably connected to the filter box 22 and is located inside the filter box 22; the valve 232 is disposed on the connection pipe 21.
In this embodiment, the rose box 22 with the work frame 1 is connected, and is located remove the below of oil tank 2, the connecting pipe 21 will the rose box 22 with remove the oil tank 2 intercommunication, the valve 232 model is SXL121, sets up on the connecting pipe 21, the filter 231 sets up the inside middle-end of rose box 22, so far, work as remove the waste water froth in the oil tank 2 and float the back, open the valve 232, with waste water leading-in the rose box 22, the fastening the filter 231 is discharged after further filtering, and then further filters waste water, is favorable to the environmental protection, and the result of use is better.
Referring to fig. 6, a method for treating printing wastewater from carton packaging includes the following steps:
s101: introducing the wastewater into an oil removal tank 2, and separating oily substances in the wastewater by an air floatation method;
s102: after the separation is finished, the motor 1332 is started, the roller 132 is driven to rotate, the connecting rope 131 is wound, the impurity removing net 3 is driven to move upwards to the top end of the wastewater, and the floating foam enters the impurity removing net 3;
s103: the waste water from which the froth has been removed is led to a filter box 22 for further filtration;
s104: taking out the impurity removing net 3, and treating the floating foam in the impurity removing net 3;
s105: after the treatment, the impurity removing net 3 is placed back into the oil removing tank 2, the roller 132 is driven reversely, the impurity removing net 3 is driven to reset, and the next use is waited.
In this embodiment, firstly, wastewater is introduced into the oil removing tank 2, oily substances in the wastewater are separated by an air floatation method to generate floating foam and float on the top of the wastewater, after the separation is finished, the motor 1332 is driven, the motor 1332 drives the roller 132 to rotate, the roller 132 winds the connecting rope 131, further drives the impurity removing net 3 to move upwards and move to the top of the wastewater, the floating foam enters the inner wall of the impurity removing net 3 at the moment, further floating foam is salvaged, then the wastewater with the floating foam removed is introduced into the filter box 22 to be further filtered, then the impurity removing net 3 is taken out and cleaned, the impurity removing net 3 is placed inside the oil removing tank 2, the roller 132 is driven reversely, the impurity removing net 3 is placed at an initial position, and the next use is facilitated, and then once only salvage out the froth, reduce the hand labor power, effectively improve work efficiency.
A carton package is suitable for the carton package printing wastewater treatment device.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A carton packing printing wastewater treatment device is characterized by comprising a working frame (1), an oil removal box (2), an impurity removal net (3), a connecting plate (4), a power assembly (10) and an auxiliary assembly (20);
the oil removing box (2) is fixedly connected with the working frame (1) and is positioned on one side of the working frame (1), the impurity removing net (3) is positioned inside the oil removing box (2), the connecting plate (4) is fixedly connected with the impurity removing net (3) and is positioned on one side, close to the oil removing box (2), of the impurity removing net (3), and the auxiliary assembly (20) is connected with the working frame (1);
power component (10) is including solid fixed ring (11), couple (12), traction member (13) and guide member (14), gu fixed ring (11) with connecting plate (4) fixed connection, and be located connecting plate (4) are kept away from one side of edulcoration net (3), just gu the quantity of fixed ring (11) is two, two gu fixed ring (11) relative distribution respectively, two gu fixed ring (11) are kept away from one side of connecting plate (4) is dismantled respectively and is connected with couple (12), two couple (12) are kept away from one side of solid fixed ring (11) is connected with respectively traction member (13), guide member (14) with edulcoration net (3) are connected.
2. The carton packing printing wastewater treatment device according to claim 1,
the traction component (13) comprises a connecting rope (131), a roller (132) and a driving part (133), one sides of the two hooks (12) far away from the fixing ring (11) are respectively and fixedly connected with the connecting rope (131), one ends of the two connecting ropes (131) far away from the hooks (12) are respectively connected with the roller (132), and the roller (132) is positioned outside the oil removing tank (2); the driving part (133) is fixedly connected with the oil removing tank (2).
3. The carton packing printing wastewater treatment device according to claim 1,
the guide member (14) comprises a sliding block (141) and a sealing gasket (142), and the sliding block (141) is fixedly connected with the impurity removing net (3) and is in sliding connection with the oil removing tank (2); the sealing gasket (142) is fixedly connected with the oil removing tank (2) and is positioned between the oil removing tank (2) and the sliding block (141).
4. The carton packing printing wastewater treatment device according to claim 1,
the auxiliary assembly (20) comprises a connecting pipe (21), a filter box (22) and a filter member (23), and two ends of the connecting pipe (21) are respectively communicated with the oil removing box (2) and the filter box (22); the filter box (22) is fixedly connected with the working frame (1) and is positioned below the oil removing box (2); the filter element (23) is connected to the filter box (22).
5. The carton packing printing wastewater treatment device according to claim 4,
the filter member (23) comprises a filter plate (231) and a valve (232), the filter plate (231) is detachably connected with the filter box (22) and is positioned inside the filter box (22); the valve (232) is arranged on the connecting pipe (21).
6. A carton packing printing wastewater treatment method applied to the carton packing printing wastewater treatment device according to claim 1, characterized by comprising the following steps:
introducing the wastewater into a deoiling tank (2), and separating oily substances in the wastewater by an air floatation method;
after the separation is finished, starting a motor (1332), driving a roller (132) to rotate, winding a connecting rope (131), driving an impurity removal net (3) to move upwards to the top end of the wastewater, and enabling floating foam to enter the impurity removal net (3);
guiding the waste water without froth into a filter tank (22) for further filtering;
taking out the impurity removal net (3), and treating the floating foam in the impurity removal net (3);
and after treatment, the impurity removing net (3) is placed back into the oil removing tank (2), the roller (132) is driven reversely to drive the impurity removing net (3) to reset to wait for next use.
7. A carton package suitable for the carton package printing wastewater treatment device according to claim 1.
CN202111646853.9A 2021-12-30 2021-12-30 Carton packaging and printing wastewater treatment method and device Pending CN114249448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111646853.9A CN114249448A (en) 2021-12-30 2021-12-30 Carton packaging and printing wastewater treatment method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111646853.9A CN114249448A (en) 2021-12-30 2021-12-30 Carton packaging and printing wastewater treatment method and device

Publications (1)

Publication Number Publication Date
CN114249448A true CN114249448A (en) 2022-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111646853.9A Pending CN114249448A (en) 2021-12-30 2021-12-30 Carton packaging and printing wastewater treatment method and device

Country Status (1)

Country Link
CN (1) CN114249448A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210656402U (en) * 2019-06-24 2020-06-02 日照海川水处理设备股份有限公司 Filtration for sewage treatment
CN213834785U (en) * 2020-12-04 2021-07-30 青岛昌泰包装有限公司 Carton packing printing effluent treatment plant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210656402U (en) * 2019-06-24 2020-06-02 日照海川水处理设备股份有限公司 Filtration for sewage treatment
CN213834785U (en) * 2020-12-04 2021-07-30 青岛昌泰包装有限公司 Carton packing printing effluent treatment plant

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