Fountain solution precise filtering system

Abstract

The utility model relates to a precise fountain solution filtering system which comprises a pipeline assembly, a power pump assembly and a control valve assembly. The pipeline assembly comprises a main path and a first branch path, a wastewater collecting tank, a middle temporary storage tank, a filtering assembly, a UV photocatalyst ceramic core water treater, a quality control device and a storage tank are sequentially arranged on the main path, the first end of the first branch path is connected to the quality control device, and the second end of the first branch path is connected with the main path and located between the middle temporary storage tank and the filtering assembly. If the quality control device detects that the processed fountain solution does not meet the standard, the first control valve and the second control valve are closed firstly, the unprocessed fountain solution is stored in the middle temporary storage box at the moment, and the processed fountain solution which does not meet the standard is circularly filtered through the first branch until the fountain solution meets the standard; and the second control valve is opened, and the fountain solution meeting the standard is transferred to the water tank of the printing machine to be recycled, so that the purpose of improving the filtering precision is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a fountain solution precision filtering system. Background Art

[0002] With the development of the economy, the effective use of energy and the reduction and prevention of environmental pollution have become an important task in business operations, and people's awareness of environmental protection is also increasing.

[0003] The printing industry, as a whole, traditionally produces a significant amount of wastewater during printing processes. The dampening water used in offset printing contains chemicals such as isopropyl alcohol and ink, which can cause environmental pollution. Reducing wastewater discharge and chemical use will benefit the environment while also lowering production costs.

[0004] The fountain solution filtration system disclosed in the prior art generally reuses the treated fountain solution after coarse filtration and fine filtration. However, the fountain solution treated by the filtration system is not completely filtered, resulting in the presence of fine impurities in the fountain solution, which affects subsequent use. On the other hand, since the fountain solution usually contains a variety of organic substances, such as ink residues, paper powder, detergents and other chemical additives, these ingredients can serve as a source of nutrition for microorganisms. Coupled with the suitable temperature and pH value, it is easy for microorganisms to grow, and the existing filtration system cannot completely treat these microorganisms. Utility Model Content

[0005] The purpose of the utility model is to provide a fountain solution precision filtration system, which aims to solve the technical problems of the existing fountain solution filtration system in that the filtration precision is insufficient and the growth of microorganisms cannot be handled.

[0006] In order to solve the above technical problems, a fountain solution precision filtration system is provided, comprising:

[0007] A pipeline assembly includes a main line and a first branch line, wherein the main line is sequentially provided with a wastewater collection tank, an intermediate storage tank, a filter assembly, a UV photocatalyst ceramic core water treatment device, a quality control device, and a storage tank, wherein a first end of the first branch line is connected to the quality control device, and a second end of the first branch line is connected to the main line and is located between the intermediate storage tank and the filter assembly;

[0008] A power pump assembly is provided on the pipeline assembly, and includes a first power pump, a second power pump, and a third power pump. The first power pump is provided on the main road and located between the wastewater collection tank and the intermediate storage tank. The second power pump is provided on the first branch road. The third power pump is provided on the main road and located between the quality control device and the storage tank.

[0009] A control valve assembly is arranged on the pipeline assembly, and the control valve assembly is configured to control the on-off of the pipeline assembly. The control valve assembly includes a first control valve, a second control valve and a third control valve. The first control valve is arranged between the intermediate storage box and the filter assembly, the second control valve is arranged between the quality control device and the storage box, and the third control valve is arranged on the first branch.

[0010] Furthermore, the filter assembly includes a first filter box and a second filter box, and the first filter box and the second filter box are arranged in parallel.

[0011] Furthermore, the main path includes a main front path, a first branch path, a second branch path, and a main rear path, the first branch path and the second branch path are arranged in parallel, the first branch path and the second branch path are both connected between the main front path and the main rear path, the first filter box is arranged on the first branch path, and the second filter box is arranged on the second branch path;

[0012] The control valve assembly further includes a fourth control valve and a fifth control valve. The fourth control valve is arranged on the first branch and located between the main front path and the first filter box. The fifth control valve is arranged on the second branch and located between the main front path and the second filter box.

[0013] Furthermore, the dampening fluid precision filtration system also includes a one-way valve assembly, which includes a first one-way valve and a second one-way valve. The first one-way valve is arranged on the first branch and is located between the main rear path and the first filter box. The second one-way valve is arranged on the second branch and is located between the main rear path and the second filter box.

[0014] Furthermore, the one-way valve assembly also includes a third one-way valve, which is arranged in the main front path and located between the wastewater collection tank and the first power pump.

[0015] Furthermore, the fountain solution precision filtration system also includes a sterilization agent box and a cyclone separator, the pipeline assembly also includes a second branch, the power pump assembly also includes a fourth power pump, the second branch is connected between the sterilization agent box and the UV photocatalyst ceramic core water treatment device, and the fourth power pump is arranged on the second branch; the cyclone separator is arranged on the main road and is located between the first power pump and the intermediate storage box.

[0016] Furthermore, the control valve assembly further includes a sixth control valve, which is arranged on the second branch and located between the sterilization agent tank and the fourth power pump.

[0017] Furthermore, the first filter box and the second filter box each include a preliminary filter, a hollow fiber membrane filter, and a ceramic membrane filter, which are sequentially arranged along the flow direction of the fountain solution.

[0018] Furthermore, the quality control device includes a controller, and an automatic surface tension detector, an automatic conductivity detector, an automatic pH detector and an automatic regulator electrically connected to the controller respectively, and the first branch is connected to the automatic regulator.

[0019] Furthermore, the quality control device also includes a fourth one-way valve, and the fourth one-way valve is arranged between the controller and the automatic regulator.

[0020] The implementation of the present invention will have the following beneficial effects:

[0021] The fountain solution precision filtration system in this embodiment is provided with an intermediate temporary storage box, a first control valve, a second control valve, a quality control device and a first branch. The quality control device is used to detect whether the filtered fountain solution meets the standards. If it does not meet the standards, the first control valve and the second control valve will be closed first. At this time, the untreated fountain solution will be stored in the intermediate temporary storage box, and the treated fountain solution that does not meet the standards will be circulated and filtered through the first branch until it meets the standards. The second control valve will be opened and the fountain solution that meets the standards will be transferred to the printing press water tank for recycling, thereby achieving the purpose of improving the filtration accuracy. On the other hand, by providing a UV photocatalyst ceramic core water treatment device, the microorganisms growing in the fountain solution can be treated to the maximum extent, which is conducive to further improving the quality of the fountain solution and increasing the recycling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the fountain solution precision filtration system according to the embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the fountain solution precision filtration system according to the embodiment of the utility model. Figure 2 ;

[0025] Figure 3 This is a schematic structural diagram of the quality control device described in an embodiment of the present utility model.

[0026] Among them: 100, fountain solution precision filtration system; 110, pipeline assembly; 111, main road; 1111, main front road; 1112, first branch road; 1113, second branch road; 1114, main rear road; 112, first branch road; 113, second branch road; 120, power pump assembly; 121, first power pump; 122, second power pump; 123, third power pump; 124, fourth power pump; 130, control valve assembly; 131, first control valve; 132, second control valve; 133, third control valve; 134, fourth control valve; 135, fifth control valve; 136, sixth control valve; 140, wastewater collection tank; 150, intermediate temporary Storage box; 160. Filter assembly; 161. First filter box; 162. Second filter box; 163. Preliminary filter; 164. Hollow fiber membrane filter; 165. Ceramic membrane filter; 170. UV photocatalyst ceramic core water treatment device; 180. Quality control device; 181. Controller; 182. Automatic surface tension detector; 183. Automatic conductivity detector; 184. Automatic pH detector; 185. Automatic regulator; 186. Fourth one-way valve; 190. Storage box; 200. One-way valve assembly; 201. First one-way valve; 202. Second one-way valve; 203. Third one-way valve; 210. Sterilization agent box; 220. Cyclone separator. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please refer to Figure 1-Figure 3The present invention provides a fountain solution precision filtration system 100, comprising a piping assembly 110, a power pump assembly 120, and a control valve assembly 130. The piping assembly 110 includes a main line 111 and a first branch line 112. The main line 111 is sequentially provided with a wastewater collection tank 140, an intermediate storage tank 150, a filter assembly 160, a UV photocatalyst ceramic core water treatment unit 170, a quality control device 180, and a storage tank 190. The first end of the first branch line 112 is connected to the quality control device 180, and the second end of the first branch line 112 is connected to the main line 111 and is located between the intermediate storage tank 150 and the filter assembly 160. The power pump assembly 120 is arranged on the pipeline assembly 110. The power pump assembly 120 includes a first power pump 121, a second power pump 122 and a third power pump 123. The first power pump 121 is arranged on the main road 111 and is located between the wastewater collection tank 140 and the intermediate storage tank 150. The second power pump 122 is arranged on the first branch road 112. The third power pump 123 is arranged on the main road 111 and is located between the quality control device 180 and the storage tank 190. The control valve assembly 130 is disposed on the pipeline assembly 110 and is configured to control the on / off state of the pipeline assembly 110. The control valve assembly 130 includes a first control valve 131, a second control valve 132, and a third control valve 133. The first control valve 131 is disposed between the intermediate storage tank 150 and the filter assembly 160, the second control valve 132 is disposed between the quality control device 180 and the storage tank 190, and the third control valve 133 is disposed on the first branch 112. For example, the first, second, and third control valves 131, 132, and 133 are solenoid valves for controlling the on / off state of the pipeline assembly 110. The first, second, and third power pumps 121, 122, and 123 are water pumps for providing power for the flow of the fountain solution in the pipeline assembly 110. The UV photocatalyst ceramic core water treatment device 170 solution given in this example can decompose organic matter in sewage, kill bacteria in the water, reduce the conductivity of the water, clean the sewage, and allow the water to be recycled repeatedly, thereby reducing sewage discharge. The UV photocatalyst ceramic core water treatment device 170 performs photocatalytic treatment on the dampening water, decomposing and oxidizing organic matter in the water, killing various bacteria in the water, thereby reducing the conductivity of the water, allowing the dampening water to be recycled repeatedly, extending its service life, and reducing sewage discharge. In the UV photocatalyst ceramic core water treatment device 170, ultraviolet light is used to catalyze the reaction of nanomaterials in the printing dampening water, reducing the conductivity of the water, thereby reducing the use of chemicals such as isopropyl alcohol and dampening solution additives.

[0031] Please refer to Figure 1 、 Figure 2 and Figure 3The fountain solution precision filtration system 100 in this embodiment is provided with an intermediate temporary storage box 150, a first control valve 131, a second control valve 132, a quality control device 180 and a first branch 112. The quality control device 180 is used to detect whether the filtered fountain solution meets the standards. If it does not meet the standards, the first control valve 131 and the second control valve 132 will be closed first. At this time, the untreated fountain solution will be stored in the intermediate temporary storage box 150, and the treated fountain solution that does not meet the standards will be circulated and filtered through the first branch 112 until it meets the standards. The second control valve 132 will be opened, and the fountain solution that meets the standards will be transferred to the printing press water tank for recycling, thereby achieving the purpose of improving the filtration accuracy. On the other hand, by providing a UV photocatalyst ceramic core water processor 170, the microorganisms growing in the fountain solution can be treated to the maximum extent, which is conducive to further improving the quality of the fountain solution and increasing the recycling rate.

[0032] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, the filter assembly 160 includes a first filter box 161 and a second filter box 162, which are arranged in parallel. For example, the parallel arrangement of the first and second filter boxes 161, 162 can provide the following key benefits: First, when the demand for fountain solution increases, the two parallel filter boxes can operate simultaneously, increasing the processing capacity of the entire system and meeting greater flow demands. Second, if one filter box fails or requires maintenance, the other filter box can continue to operate, ensuring continuous operation of the system and thus improving the reliability and stability of the entire system. Third, the parallel arrangement distributes the load between the two filter boxes, reducing the workload of each filter box and helping to extend the service life of each filter box. Fourth, if one filter box needs to be cleaned or the filter replaced, it can be shut down without affecting the operation of the entire system because the other filter box can continue to operate, allowing maintenance operations to be performed without shutting down the system. Fifth, users can configure two filter boxes to use different types of filter media or different filtration precisions according to actual needs. This can remove pollutants of different sizes or properties in stages and improve the overall filtration efficiency and quality.

[0033] Please refer to Figure 1 、 Figure 2 and Figure 3In one possible embodiment, the main path 111 includes a main front path 1111, a first branch path 1112, a second branch path 1113, and a main rear path 1114. The first branch path 1112 and the second branch path 1113 are arranged in parallel and are both connected between the main front path 1111 and the main rear path 1114. The first filter box 161 is arranged on the first branch path 1112, and the second filter box 162 is arranged on the second branch path 1113. The control valve assembly 130 also includes a fourth control valve 134 and a fifth control valve 135. The fourth control valve 134 is arranged on the first branch path 1112 and is located between the main front path 1111 and the first filter box 161. The fifth control valve 135 is arranged on the second branch path 1113 and is located between the main front path 1111 and the second filter box 162.

[0034] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, the fountain solution precision filtration system 100 further includes a one-way valve assembly 200, which includes a first one-way valve 201 and a second one-way valve 202. The first one-way valve 201 is disposed on the first branch 1112 and is located between the main rear path 1114 and the first filter box 161. The second one-way valve 202 is disposed on the second branch 1113 and is located between the main rear path 1114 and the second filter box 162. For example, each one-way valve in the one-way valve assembly 200 is used to prevent backflow of the fountain solution.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 3 In a possible implementation, the one-way valve assembly 200 further includes a third one-way valve 203 . The third one-way valve 203 is disposed in the main front path 1111 and is located between the wastewater collection tank 140 and the first power pump 121 .

[0036] Please refer to Figure 1 、 Figure 2 and Figure 3In one possible embodiment, the fountain solution precision filtration system 100 also includes a sterilizing agent tank 210 and a cyclone separator 220. The pipeline assembly 110 also includes a second branch 113. The power pump assembly 120 also includes a fourth power pump 124. The second branch 113 is connected between the sterilizing agent tank 210 and the UV photocatalyst ceramic core water treatment unit 170. The fourth power pump 124 is located on the second branch 113. The cyclone separator 220 is located on the main line 111 and between the first power pump 121 and the intermediate storage tank 150. For example, the sterilizing agent tank 210 contains German Oxytech fungicide. The top of the cyclone separator 220 is a separation outlet, and the bottom of the cyclone separator 220 is connected to the filter assembly 160 via a pipeline. The cyclone separator 220 in this embodiment was purchased commercially and has a centrifugal speed of 3.5 to 5 m / s.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 In a possible implementation, the control valve assembly 130 further includes a sixth control valve 136 . The sixth control valve 136 is disposed on the second branch 113 and located between the sterilization agent tank 210 and the fourth power pump 124 .

[0038] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, first filter box 161 and second filter box 162 each include a primary filter 163, a hollow fiber membrane filter 164, and a ceramic membrane filter 165, which are sequentially arranged along the flow direction of the fountain solution. For example, the fountain solution is filtered through primary filter 163, hollow fiber membrane filter 164, and ceramic membrane filter 165 to remove ink residue, paper dust, paper scraps, and oil stains.

[0039] Please refer to Figure 1 、 Figure 2 and Figure 3In one possible embodiment, quality control device 180 includes a controller 181, and an automatic surface tension detector 182, an automatic conductivity detector 183, an automatic pH detector 184, and an automatic regulator 185, each electrically connected to controller 181. First branch 112 is connected to automatic regulator 185. For example, automatic surface tension detector 182 is a surface tension meter manufactured by KRUSS in Germany, the automatic conductivity detector is manufactured by Hach in the United States, and the automatic pH detector 184 is manufactured by Lian Test. Controller 181 is a PLC controller 181 with a built-in control program. Controller 181 functions for logical judgment and control, meeting the requirements of this embodiment. In this embodiment, automatic regulator 185 is a water pump. The pH, conductivity and surface tension are tested in the quality control device 180, and the test results are fed back to the controller 181. The controller 181 controls the fountain solution automatic regulator 185 to add corresponding additives. When the three parameters of the fountain solution meet the conductivity of 800-1200μs / cm, pH value of 4.5-5.5, and surface tension of 0.04-0.07N / m.

[0040] Please refer to Figure 1 、 Figure 2 and Figure 3 In a possible implementation, the quality control device 180 further includes a fourth one-way valve 186 , which is disposed between the controller 181 and the automatic regulator 185 .

[0041] Please refer to Figure 1 、 Figure 2 and Figure 3 , the use process of the fountain solution precision filtration system 100:

[0042] The used dampening solution flows into the wastewater collection tank 140, and the first power pump 121 is started. The dampening solution in the wastewater collection tank 140 flows into the cyclone separator 220. At this time, large particles of foreign matter in the dampening solution are discharged through the separation outlet, and the rest flows into the intermediate storage tank 150. The first control valve 131 is opened, and the dampening solution in the intermediate storage tank 150 flows into the filter assembly 160 for filtration treatment. Thereafter, it flows through the UV photocatalyst ceramic core water processor 170, and the fourth power pump 124 is started, and the sixth control valve is opened. 136. The agent in the sterilizing agent tank 210 is injected into the UV photocatalyst ceramic core water treatment unit 170 for sterilization and disinfection. The water then enters the quality control unit 180, where it determines whether the treated fountain solution is qualified. If the fountain solution passes the test, the third control valve 133 and the second power pump 122 are closed, the second control valve 132 is opened, and the third power pump 123 is activated. The treated fountain solution flows into the storage tank 190 for recycling in the printing press. If the fountain solution fails the test, the first control valve 131, the second control valve 132, and the third power pump 123 are closed, the third control valve 133 is opened, and the second power pump 122 is activated. The fountain solution in the quality control unit 180 flows back to the filter assembly 160 for recycling until the fountain solution passes the test, thereby improving the quality of the fountain solution. The fountain solution for subsequent use in the printing press is then stored in the intermediate storage tank 150.

[0043] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A fountain solution precision filtration system, characterized in that: include: A pipeline assembly includes a main line and a first branch line, wherein the main line is sequentially provided with a wastewater collection tank, an intermediate storage tank, a filter assembly, a UV photocatalyst ceramic core water treatment device, a quality control device, and a storage tank, wherein a first end of the first branch line is connected to the quality control device, and a second end of the first branch line is connected to the main line and is located between the intermediate storage tank and the filter assembly; A power pump assembly is provided on the pipeline assembly, and includes a first power pump, a second power pump, and a third power pump. The first power pump is provided on the main road and located between the wastewater collection tank and the intermediate storage tank. The second power pump is provided on the first branch road. The third power pump is provided on the main road and located between the quality control device and the storage tank. A control valve assembly is arranged on the pipeline assembly, and the control valve assembly is configured to control the on-off of the pipeline assembly. The control valve assembly includes a first control valve, a second control valve and a third control valve. The first control valve is arranged between the intermediate storage box and the filter assembly, the second control valve is arranged between the quality control device and the storage box, and the third control valve is arranged on the first branch.

2. The fountain solution precision filtration system according to claim 1, characterized in that: The filter assembly includes a first filter box and a second filter box, and the first filter box and the second filter box are arranged in parallel.

3. The fountain solution precision filtration system according to claim 2, characterized in that: The main path includes a main front path, a first branch path, a second branch path, and a main rear path. The first branch path and the second branch path are arranged in parallel. The first branch path and the second branch path are both connected between the main front path and the main rear path. The first filter box is arranged on the first branch path, and the second filter box is arranged on the second branch path. The control valve assembly further includes a fourth control valve and a fifth control valve. The fourth control valve is arranged on the first branch and located between the main front path and the first filter box. The fifth control valve is arranged on the second branch and located between the main front path and the second filter box.

4. The fountain solution precision filtration system according to claim 3, characterized in that: The dampening fluid precision filtration system also includes a one-way valve assembly, which includes a first one-way valve and a second one-way valve. The first one-way valve is arranged on the first branch and is located between the main rear path and the first filter box. The second one-way valve is arranged on the second branch and is located between the main rear path and the second filter box.

5. The fountain solution precision filtration system according to claim 4, characterized in that: The one-way valve assembly further includes a third one-way valve, which is disposed in the main front path and located between the wastewater collection tank and the first power pump.

6. The fountain solution precision filtration system according to claim 1, characterized in that: The fountain solution precision filtration system also includes a sterilizing agent box and a cyclone separator, the pipeline assembly also includes a second branch, the power pump assembly also includes a fourth power pump, the second branch is connected between the sterilizing agent box and the UV photocatalyst ceramic core water treatment device, and the fourth power pump is arranged on the second branch; the cyclone separator is arranged on the main road and is located between the first power pump and the intermediate storage box.

7. The fountain solution precision filtration system according to claim 6, characterized in that: The control valve assembly further includes a sixth control valve, which is disposed on the second branch and located between the sterilization agent tank and the fourth power pump.

8. The fountain solution precision filtration system according to claim 2, characterized in that: The first filter box and the second filter box both include a preliminary filter, a hollow fiber membrane filter and a ceramic membrane filter which are sequentially arranged along the flow direction of the fountain solution.

9. The fountain solution precision filtration system according to claim 1, characterized in that: The quality control device includes a controller, and an automatic surface tension detector, an automatic conductivity detector, an automatic pH detector and an automatic regulator electrically connected to the controller respectively, and the first branch is connected to the automatic regulator.

10. The fountain solution precision filtration system according to claim 9, characterized in that: The quality control device further includes a fourth one-way valve, which is arranged between the controller and the automatic regulator.

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