CN216584478U - Development waste liquid zero release recycling system - Google Patents
Development waste liquid zero release recycling system Download PDFInfo
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- CN216584478U CN216584478U CN202220074471.7U CN202220074471U CN216584478U CN 216584478 U CN216584478 U CN 216584478U CN 202220074471 U CN202220074471 U CN 202220074471U CN 216584478 U CN216584478 U CN 216584478U
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Abstract
The utility model relates to a developing waste liquid zero discharge recycling system, belonging to the field of developing liquid recycling, which comprises a centrifuge, a developing cylinder and a recycling device, wherein the centrifuge is connected with the developing cylinder and is used for receiving the developing waste liquid from the developing cylinder; the overflow barrel is connected with the centrifugal machine and is used for receiving concentrated liquid obtained by the separation of the centrifugal machine; the membrane filtering device is connected with the overflow barrel and is used for receiving the liquid from the overflow barrel and filtering the liquid to separate the concentrated liquid and clear liquid; the clear liquid barrel is connected with the membrane filtering device and the developing cylinder and is used for receiving the clear liquid from the membrane filtering device and storing the clear liquid; the overflow barrel and the centrifuge form a first sub-circulation filtering system, the overflow barrel and the membrane filtering device form a second sub-circulation filtering system, and the developing tank, the centrifuge, the overflow barrel, the membrane filtering device and the clear liquid barrel form a total circulation filtering system. The utility model discloses can realize the zero release of development waste liquid.
Description
Technical Field
The utility model relates to a developer solution field of retrieving, in particular to development waste liquid zero release recycling system.
Background
The PCB generates a development waste liquid during the image transfer process, and the development waste liquid contains a large amount of high molecular polymers, organic amines, alkalis, and the like, and thus, a large amount of waste water is generated during the entire process of manufacturing the PCB. Nowadays, water pollution and water shortage become two major problems restricting the development of China. Under the background, the development of circular economy, the reduction of wastewater discharge and the maximum improvement of the utilization rate of water resources by industrial enterprises become the goals of people. The zero discharge technology just meets the requirement, and the key point of the zero discharge technology is that the waste water is recycled and no liquid pollutant is discharged.
SUMMERY OF THE UTILITY MODEL
Based on this, there is a need for a developing waste liquid zero-emission recycling system, which includes a centrifuge, connected to a developing tank, for receiving the developing waste liquid from the developing tank, and performing centrifugal filtration treatment on the liquid received by the centrifuge to separate dry slag and a concentrated liquid; the overflow barrel is connected with the centrifugal machine and is used for receiving the concentrated liquid separated by the centrifugal machine and storing and transferring the received liquid; the membrane filtering device is connected with the overflow barrel and is used for receiving the liquid from the overflow barrel and filtering the liquid to separate the concentrated liquid and the clear liquid; the clear liquid barrel is connected with the membrane filtering device and the developing cylinder and is used for receiving the clear liquid from the membrane filtering device, storing the clear liquid and conveying the clear liquid to the developing cylinder for recycling; the overflow barrel is connected with the centrifugal machine through a two-way communication structure capable of being switched on and off, the overflow barrel and the centrifugal machine form a first sub-circulation filtering system, the overflow barrel is connected with the membrane filtering device through a two-way communication structure capable of being switched on and off, the overflow barrel and the membrane filtering device form a second sub-circulation filtering system, and the first sub-circulation filtering system and the second sub-circulation filtering system work alternately; the developing tank, the centrifuge, the overflow barrel, the membrane filtering device and the clear liquid barrel form a total circulating and filtering system.
Wherein the bidirectional communication structure connected between the overflow tank and the centrifuge and the membrane filtration device is integrated with a structure for conveying liquid, such as a pump, to realize the circulation flow of liquid between the overflow tank and the centrifuge and the membrane filtration device.
The utility model discloses in, centrifuge is used for carrying out the prefilter to the development waste liquid, and membrane filter equipment is used for filtering the suspended solid that separates out centrifuge can not isolate.
The utility model discloses in, centrifuge and overflow bucket constitute first sub-circulation filtration system, when centrifuge received the development waste liquid that comes from the developing vat and separated it and filter, the overflow bucket can be through the drawing liquid structure, for example the pump, extract the dope that filters in the centrifuge and can be through the infusion structure, for example the pump, convey the dope back to centrifuge and filter once more, consequently, the utility model discloses can let the development waste liquid circulate and flow between centrifuge and overflow bucket, thereby can make the development waste liquid be by centrifuge full circulation filtration, in order to separate out the solid suspended solid in the development waste liquid as far as possible, obtain the dry residue, wherein, the dry residue that centrifuge filtered and obtained can be discharged by centrifuge;
the membrane filtering device and the overflow barrel form a second sub-circulation filtering system, after the first sub-circulation filtering system finishes circulation filtering, the concentrated solution obtained by filtering and separation can circularly flow between the overflow barrel and the membrane filtering device, so that the concentrated solution can be sufficiently and circularly filtered by the membrane filtering device, the fixed suspended matters which cannot be separated by the separator in the concentrated solution are thoroughly separated to obtain concentrated solution and clear solution, and the clear solution at the moment can be recycled to the developing tank, thereby realizing the recycling of the clear solution, simultaneously, the burden of the subsequent filtering process of the membrane filtering device can be reduced, and the filtering efficiency and the filtering effect are improved; wherein, the concentrate can continue to flow back to the overflow bucket, participates in first sub-circulation filtration system's next time circulation filtration for centrifuge separates it again, separates into dry residue with it thoroughly, thereby can reach the purpose of zero release.
Further, the overflow bucket is also connected with the developing cylinder and is used for continuously receiving overflow liquid overflowing from the developing cylinder.
The overflow liquid is positioned on the surface of the developing solution and contains dirt which is formed by precipitation and condensation of dissolved dry film components in the using process of the developing solution.
Wherein, overflow bucket and developing tank are connected, and can continuously receive the overflow liquid of overflow outflow from developing tank, consequently, when overflow bucket participated in first sub-circulating filtration system and second sub-circulating filtration system's circulating filtration, the overflow liquid that comes out from developing tank overflow also can be by the filtering separation simultaneously, promptly the utility model discloses can separate the filtration to all waste liquids that produce in the development process to realize the zero release of all waste liquids in the development process.
Further, the overflow barrel is communicated with an overflow port of the developing tank through an overflow pipeline.
The overflow port is used for flowing out the developer containing dirt on the surface of the developer.
Further, the developing device further comprises an adding cylinder, wherein the adding cylinder is arranged between the developing cylinder and the clear liquid barrel and used as a transfer storage structure to communicate the developing cylinder and the clear liquid barrel.
After the membrane filtering device separates out the clear liquid, the clear liquid can be temporarily stored in the adding cylinder, so that the clear liquid can be utilized in the adding cylinder to prepare the supplementing liquid, and then the supplementing liquid is conveyed to the developing cylinder.
Further, the membrane filtering device adopts a vibrating membrane filtering device.
The vibrating membrane filtering device can avoid the fouling problem of the filtering membrane by applying shearing force on the surface of the filtering membrane, thereby further ensuring that the filtering membrane can continuously and normally work.
Among them, the vibrating membrane filtration device is preferably a VSEP vibrating membrane filtration device.
A developing waste liquid recycling process of a developing waste liquid zero-discharge recycling system comprises the following steps:
s1, the overflow barrel receives overflow liquid overflowing from the developing tank in real time, and the centrifuge receives the developing waste liquid from the developing tank and the overflow liquid from the overflow barrel;
s2, circulating the waste developing liquid and the overflow liquid in the overflow barrel in a first sub-circulating filtering system consisting of the overflow barrel and a centrifugal machine, and performing circulating filtration to continuously filter and separate the waste developing liquid and the overflow liquid, so that the waste developing liquid and the overflow liquid are fully filtered, and meanwhile, discharging dry residues obtained by filtering and separating out of the centrifugal machine;
s4, stopping the first sub-circulation filtering system, and performing circulation filtering on the concentrated solution and the overflow solution which are subjected to circulation filtering by the first sub-circulation filtering system in the overflow barrel in the second sub-circulation filtering system to fully filter the concentrated solution and the clear solution to obtain concentrated solution and clear solution;
and S5, discharging the concentrated solution, or returning the concentrated solution to the overflow barrel to participate in the next circulation filtration of the first sub-circulation system, storing the clear solution in a clear solution barrel, and conveying the clear solution to the developing cylinder when the developing cylinder needs to be supplemented with the developing solution.
Further, when the clear liquid barrel conveys clear liquid in the clear liquid barrel to the developing cylinder, the clear liquid is firstly conveyed to the adding cylinder to prepare the supplementary liquid, and then the adding cylinder conveys the supplementary liquid to the developing cylinder for recycling.
The adding cylinder is used as a transfer storage structure in the process of conveying the clear liquid to the developing cylinder, so that the adding liquid can be prepared, and the clear liquid recycling process can be conveniently carried out.
The principle and effect of the present invention will be further explained below with reference to the above technical solutions and the accompanying drawings:
the utility model can filter out the solid suspended matter with larger particles in the developing waste liquid through the arrangement of the first sub-circulation filtering system, thereby reducing the filtering burden of the membrane filtering device in the second sub-circulation filtering system, improving the filtering efficiency and the filtering effect thereof, ensuring the long-time normal work of the membrane filtering device, meanwhile, the arrangement of the second sub-circulation filtering system can ensure that the membrane filtering device can thoroughly separate the concentrated solution into clear solution and concentrated solution in the circulation filtering process, thereby realizing the recycling of the clear solution, meanwhile, through the arrangement of the first sub-circulating and filtering system, the developing waste liquid received from the developing cylinder and the concentrated solution received from the membrane filtering device can be sufficiently and circularly filtered, and finally the developing waste liquid and the concentrated solution can be thoroughly separated into dry slag without moisture, so that zero emission of the developing waste liquid can be realized.
Drawings
Fig. 1 is a schematic structural view of a developing waste liquid zero-discharge recycling system according to an embodiment of the present invention.
Description of reference numerals:
1-developing tank, 2-centrifuge, 3-overflow tank, 4-membrane filtering device, 5-clear liquid tank, and 6-adding tank.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:
as shown in fig. 1, a developing waste liquid zero-emission recycling system includes a centrifuge 2 connected to a developing tank 1, and configured to receive a developing waste liquid from the developing tank 1, and perform centrifugal filtration treatment on the received liquid to separate dry residues and a concentrated liquid; the overflow barrel 3 is connected with the centrifuge 2 and used for receiving the concentrated liquid separated by the centrifuge 2 and storing and transferring the received liquid; the membrane filtering device 4 is connected with the overflow barrel 3 and is used for receiving the liquid from the overflow barrel 3 and filtering the liquid to separate the concentrated liquid and the clear liquid; the clear liquid barrel 5 is connected with the membrane filtering device 4 and the developing cylinder 1 and is used for receiving the clear liquid from the membrane filtering device 4, storing the clear liquid and conveying the clear liquid to the developing cylinder 1 for recycling; the overflow barrel 3 is connected with the centrifuge 2 through a two-way communication structure capable of being switched on and off, and forms a first sub-circulation filtering system with the centrifuge 2, the overflow barrel 3 is connected with the membrane filtering device 4 through a two-way communication structure capable of being switched on and off, and forms a second sub-circulation filtering system with the membrane filtering device 4, and the first sub-circulation filtering system and the second sub-circulation filtering system work alternately; the developing cylinder 1, the centrifuge 2, the overflow barrel 3, the membrane filtering device 4 and the clear liquid barrel 5 form a total circulating and filtering system.
Therein, the two-way communication structure connected between the overflow tank 3 and the centrifuge 2 and the membrane filtration device 4 integrates a structure for conveying liquid, such as a pump, to achieve a circulating flow of liquid between the overflow tank 3 and the centrifuge 2 and the membrane filtration device 4.
The utility model discloses in, centrifuge 2 is used for carrying out the prefilter to the development waste liquid, and membrane filter equipment 4 is used for filtering the suspended solid that centrifuge 2 can not isolate.
The utility model discloses in, centrifuge 2 and overflow bucket 3 constitute first sub-circulation filtration system, when centrifuge 2 received the development waste liquid that comes from developing jar 1 and separated it and filter, overflow bucket 3 can be through drawing liquid structure, for example the pump, the thick liquid that filters and obtain in the extraction centrifuge 2 to and can be through the infusion structure, for example the pump, carry the thick liquid back centrifuge 2 and filter once more, consequently, the utility model discloses can let the development waste liquid circulate and flow between centrifuge 2 and overflow bucket 3, thereby can make the development waste liquid be by centrifuge 2 circulation filtration fully, in order to separate the solid suspended solid in the development waste liquid as far as possible, obtain the dry residue, wherein, the dry residue that centrifuge 2 filtered and obtained can be discharged by centrifuge 2;
the membrane filtering device 4 and the overflow barrel 3 form a second sub-circulation filtering system, after the first sub-circulation filtering system finishes circulation filtering, the concentrated solution obtained by filtering and separation can circularly flow between the overflow barrel 3 and the membrane filtering device 4, so that the concentrated solution can be sufficiently and circularly filtered by the membrane filtering device 4, the fixed suspended matters which cannot be separated by the separator in the concentrated solution are thoroughly separated to obtain concentrated solution and clear solution, and the clear solution can be recycled to the developing tank 1 at the moment to realize recycling of the clear solution, meanwhile, the burden of the subsequent filtering process of the membrane filtering device 4 can be reduced, and the filtering efficiency and the filtering effect are improved; wherein, the concentrate can continue to flow back to overflow bucket 3 in, participate in the next time circulating filtration of first sub-circulating filtration system for centrifuge 2 separates it again, separates it into the dry residue thoroughly, thereby can reach the purpose of zero release.
Among them, the centrifuge 2 is preferably a decanter centrifuge 2.
In one embodiment, the overflow bucket 3 is further connected to the developing tank 1, and is configured to continuously receive overflow liquid overflowing from the developing tank 1.
The overflow liquid is positioned on the surface of the developing solution and contains dirt which is formed by precipitation and condensation of dissolved dry film components in the using process of the developing solution.
In this embodiment, overflow bucket 3 and developing vat 1 are connected, and can continuously receive the overflow liquid of overflow from developing vat 1, consequently, when overflow bucket 3 participated in first sub-circulating filtration system and second sub-circulating filtration system's circulating filtration, the overflow liquid that overflows from developing vat 1 also can be filtered and separated simultaneously, promptly the utility model discloses can separate the filtration to all waste liquids that produce in the development process to realize the zero release of all waste liquids in the development process.
In one embodiment, the overflow bucket 3 is communicated with the overflow port of the developing tank 1 through an overflow pipeline.
In this embodiment, the overflow port is used for flowing out the developer containing dirt on the surface of the developer.
In one embodiment, the developing device further comprises an adding cylinder 6, wherein the adding cylinder 6 is arranged between the developing cylinder 1 and the clear liquid barrel 5 and used as a transfer storage structure to communicate the developing cylinder 1 and the clear liquid barrel 5.
In this embodiment, the membrane filtration device 4 may temporarily store the separated clear liquid in the addition tank 6, so that the clear liquid may be used in the addition tank 6 to prepare the replenishment liquid, and then the replenishment liquid may be transferred to the developing tank 1.
In one embodiment, the membrane filtration device 4 is a vibrating membrane filtration device 4.
In this embodiment, the vibrating membrane filtering apparatus 4 can avoid the fouling problem of the filtering membrane by applying a shearing force to the surface of the filtering membrane, thereby further ensuring that the filtering membrane can continuously and normally work.
Among them, the vibrating membrane filter device 4 is preferably a VSEP vibrating membrane filter device 4.
One embodiment of the present invention provides a process for recycling developing waste liquid of a developing waste liquid zero-discharge recycling system, comprising the following steps:
s1, the overflow barrel 3 receives overflow liquid overflowing from the developing tank 1 in real time, and the centrifuge 2 receives the developing waste liquid from the developing tank 1 and the overflow liquid from the overflow barrel 3;
s2, circulating and filtering the waste developing liquid and the overflow liquid in the overflow barrel 3 in a first sub-circulating and filtering system consisting of the overflow barrel 3 and the centrifuge 2 so as to continuously filter and separate the waste developing liquid and the overflow liquid, fully filtering the waste developing liquid and the overflow liquid, and discharging dry residues obtained by filtering and separating the waste developing liquid and the overflow liquid out of the centrifuge 2;
s4, stopping the first sub-circulation filtering system, and performing circulation filtering on the concentrated solution and the overflow solution which are subjected to circulation filtering by the first sub-circulation filtering system in the overflow barrel 3 in the second sub-circulation filtering system to fully filter the concentrated solution and the clear solution to obtain concentrated solution and clear solution;
and S5, discharging the concentrated solution, or returning the concentrated solution to the overflow barrel 3 to participate in the next circulation filtration of the first sub-circulation system, wherein the clear solution enters the clear solution barrel 5 for storage, and is conveyed to the developing tank 1 when the developing tank 1 needs to be replenished with the developing solution.
In one embodiment, when the clear liquid barrel 5 conveys the clear liquid in the clear liquid barrel to the developing cylinder 1, the clear liquid is firstly conveyed to the adding cylinder 6 to prepare the replenishing liquid, and then the adding cylinder 6 conveys the replenishing liquid to the developing cylinder 1 for recycling.
In this embodiment, the adding cylinder 6 is used as a transfer storage structure in the process of conveying the clear liquid to the developing cylinder 1, so that the preparation of the adding liquid can be performed, and the clear liquid recycling process can be conveniently performed.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A developing waste liquid zero-discharge recycling system is characterized by comprising
The centrifugal machine is connected with the developing cylinder and is used for receiving the developing waste liquid from the developing cylinder and carrying out centrifugal filtration treatment on the received liquid so as to separate the liquid into dry slag and concentrated liquid;
the overflow barrel is connected with the centrifugal machine and is used for receiving the concentrated liquid separated by the centrifugal machine and storing and transferring the received liquid;
the membrane filtering device is connected with the overflow barrel and is used for receiving the liquid from the overflow barrel and filtering the liquid to separate the concentrated liquid and the clear liquid;
the clear liquid barrel is connected with the membrane filtering device and the developing cylinder and is used for receiving the clear liquid from the membrane filtering device, storing the clear liquid and conveying the clear liquid to the developing cylinder for recycling;
the overflow barrel is connected with the centrifugal machine through a two-way communication structure capable of being switched on and off, the overflow barrel and the centrifugal machine form a first sub-circulation filtering system, the overflow barrel is connected with the membrane filtering device through a two-way communication structure capable of being switched on and off, the overflow barrel and the membrane filtering device form a second sub-circulation filtering system, and the first sub-circulation filtering system and the second sub-circulation filtering system work alternately;
the developing tank, the centrifuge, the overflow barrel, the membrane filtering device and the clear liquid barrel form a total circulating and filtering system.
2. The system of claim 1, wherein the overflow bucket is further connected to the developing tank, and is configured to continuously receive overflow liquid overflowing from the developing tank.
3. The development waste liquid zero-emission recycling system of claim 2, wherein the overflow bucket is communicated with an overflow port of the development tank through an overflow pipeline.
4. The developing waste liquid zero-emission recycling system of claim 1, further comprising an adding cylinder, wherein the adding cylinder is arranged between the developing cylinder and the clear liquid barrel and used as a transfer storage structure to communicate the developing cylinder and the clear liquid barrel.
5. The development waste liquid zero-emission recycling system of claim 1, wherein the membrane filtering device is a vibrating membrane filtering device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220074471.7U CN216584478U (en) | 2022-01-12 | 2022-01-12 | Development waste liquid zero release recycling system |
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| CN202220074471.7U CN216584478U (en) | 2022-01-12 | 2022-01-12 | Development waste liquid zero release recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180744A (en) * | 2022-01-12 | 2022-03-15 | 惠州市成泰自动化科技有限公司 | Developing waste liquid zero-discharge recycling system and developing liquid recycling process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180744A (en) * | 2022-01-12 | 2022-03-15 | 惠州市成泰自动化科技有限公司 | Developing waste liquid zero-discharge recycling system and developing liquid recycling process |
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