JP3993534B2 - Washing waste liquid recycling apparatus and recycling method for printing press - Google Patents

Description

[0001]
[Field of the Invention]
TECHNICAL FIELD The present invention relates to an apparatus for regenerating waste liquid generated during cleaning of printing press components such as a blanket cylinder of a printing press, and in particular, three components of charged ink pigment, insulating cleaning liquid, and conductive water. The present invention relates to a washing waste liquid regenerating apparatus that separates three components with a single apparatus in a system in which a mixture of substances is mixed.
[0002]
[Prior art]
When cleaning the blanket cylinder or impression cylinder of a printing press, waste liquid is generated because a petroleum-based cleaning liquid is used. Conventionally, this waste liquid has been discarded, but today, an attempt has been made to reprocess the waste liquid and reuse the cleaning liquid.
Various methods have been proposed for recycling the waste liquid, but in terms of being able to perform regeneration with high efficiency, an electrostatic field is generated in the waste liquid containing the three components of ink pigment, water, and cleaning liquid, Attention has been paid to an electrostatic field utilization system in which ink pigments are electrophoresed in waste liquid and water is electrostatically aggregated to separate the ink pigment, water and cleaning liquid.
Prior to the proposal of the present invention, the present applicant has proposed a configuration of a highly practical waste liquid regenerating apparatus using an electrostatic field utilization method, which is disclosed in Patent Document 1.
[0003]
4A, 4B, and 4C are schematic diagrams for explaining the principle of waste liquid regeneration in the waste liquid regeneration apparatus disclosed in Patent Document 1. FIG. In this waste liquid regenerating apparatus, as shown in FIG. 4A, metal electrode plates 30 a and 30 b are disposed substantially horizontally in a container 45. The metal electrode plate 30a has a structure (for example, a wire mesh shape) through which a liquid can flow.
The inside of the container 45 is partitioned into a waste liquid tank (first chamber) 80 and a regeneration tank (second chamber) 75 by a lower metal electrode plate 30a. Further, the lower portion of the waste liquid tank 80 is separated from the metal electrode plate 30a. Thus, a water recovery water tank (third chamber) 90 for storing water is provided. A ground 8 is connected in the water recovery tank 90, and different voltages (provided that the metal electrode plate 30a <the metal electrode plate 30b) are applied to the metal electrode plates 30a and 30b, respectively.
[0004]
In the initial state, as shown in FIG. 4A, clean water 9 and cleaning liquid 62 are injected into the container 45, and the water 9 having a high specific gravity is precipitated in the water recovery tank 90, and the waste liquid tank 80 and the regeneration tank 75. In this state, a cleaning liquid 62 having a light specific gravity is accumulated.
In this state, as shown in FIG. 4B, when the waste liquid 11 is supplied into the waste liquid tank 80, the water 9, the ink pigment 88, and the cleaning liquid 62 mixed in the waste liquid 11 diffuse in the waste liquid tank 80, respectively.
[0005]
Here, when a high voltage is applied to the metal electrode plates 30a and 30b, the water 9 is conductive while the cleaning liquid 62 is insulative, so that the inside of the water recovery water tank 90 connected to the earth electrode 8 The water 9 itself is grounded, and an electric field is generated between the metal electrode plates (30a, 30b) and the water 9 in the water recovery water tank 90. As a result, electrophoresis of the ink pigment 88 in the cleaning liquid 62 and electrostatic aggregation of the water 9 begin, and the water 9 and the ink pigment 88 move and separate separately.
[0006]
As the electrophoresis in the electric field proceeds (that is, the state in which the electric field is generated continues for a long time), the water 9, the ink pigment 88, and the cleaning liquid 62 are completely separated, and as shown in FIG. The water 9 aggregates in a group and settles toward the water recovery water tank 90 by gravity.
Further, the positively charged ink pigment 88 is attracted to the water 9 in the water recovery water tank 90 which is the negative electrode, and aggregates in the vicinity of the interface of the water 9. As a result, only the cleaning liquid 62 passes through the metal electrode plates (30a, 30b) and is stored in the regeneration tank 75. Then, the liquid level of the regeneration tank 75 rises by the amount of the waste liquid 11 supplied into the waste liquid tank 80, and the clean cleaning liquid 62 overflowing from the regeneration tank 75 is collected in the regeneration liquid tank 70.
[0007]
In this waste liquid recycling apparatus, since the metal electrode plates (30a, 30b) are configured to allow the cleaning liquid 62 to flow, the ink pigment 88 mixed in the cleaning liquid 62 also passes through the metal electrode plate when no voltage is applied. can do. However, when the voltage is applied, the metal electrode plates (30a, 30b) become a positive electrode, and it becomes difficult for a positively charged ink pigment to pass through the metal electrode plate. In particular, since a voltage higher than that of the lower metal electrode plate (30a) is applied to the upper metal electrode plate (30b), the ink pigment 88 is tempered by the electric field between the metal electrode plates 30b and 30a. The pigment 88 is electrophoresed on the metal electrode plate 30 b side, and it becomes difficult for the ink pigment 88 to pass through the metal electrode plate 30 b and flow into the upper portion of the regeneration tank 75. The metal electrode plates 30 a and 30 b function as a filter that prevents the ink pigment 88 from flowing into the regeneration tank 75, particularly the upper portion of the regeneration tank 75 together with the cleaning liquid 62.
[0008]
In addition, as a method for discarding and collecting the separated ink pigment 88, various methods have been proposed by the inventors in Patent Document 2.
Patent Document 2 proposes various methods relating to the disposal method of the ink pigment 88. The outline of the proposed method is described below.
1) A method in which an ink pigment is attached to the ground electrode plate on the plate, and is taken out of the container together with the ground electrode plate and discarded.
2) A method in which a thin plate is used as the ground electrode plate, and the ground electrode thin plate to which the ink pigment is adhered is moved and discarded as needed.
3) A method in which the earth electrode plate is formed in a disc shape, and the disc-like earth electrode is rotated and discarded while scraping the ink pigment adhering to the disc-like earth electrode at a position where there is no waste liquid at the upper part of the container.
4) The earth electrode plate is composed of an endless thin plate, and the ink pigment adhering to the endless earth electrode is scraped off in the waste liquid.
5) The device is composed of a cylindrical electrode plate, and a cylindrical ground electrode is arranged at the center. A system in which the ink pigment adheres to the surface while rotating the ground electrode, and the adhered ink pigment is scraped off in the cleaning liquid.
Has been proposed.
[0009]
However,
1) The electrode plate drawing method has a drawback that the waste liquid cannot be continuously regenerated because the ink pigment, the cleaning liquid and the water are discharged simultaneously.
2) In the case of the scraping method, there is a drawback that the ink pigment that has been scraped falls into the cleaning liquid because of scraping in the cleaning liquid, or the ink pigment floats during scraping.
3) The winding method using a thin electrode plate has a drawback that the configuration of the winding device is complicated and the electrode cost increases.
4) The method of rotating the disk-shaped earth electrode plate has a drawback that a half of the earth electrode protrudes from the upper part of the container, and thus there is a risk of electric leakage and electric shock, and the installation place of the apparatus is limited.
[0010]
In addition, since the electrode plate has a flat plate shape, the overall device configuration is a square configuration. This structure has a drawback that the manufacturing structure becomes a welded structure and the manufacturing cost of the apparatus becomes high. Moreover, since it becomes a square container, when discarding an ink pigment, there exists a fault which an ink pigment tends to adhere to the corner | angular part of a container.
[0011]
[Patent Document 1]
JP 2002-292934 A [Patent Document 2]
Japanese Patent Laid-Open No. 2002-79259
[Problems to be solved by the invention]
The present invention has been made in view of such conventional problems, and in a washing waste liquid regeneration apparatus for a printing press that removes an ink pigment in one liquid by attaching it to one electrode by electrophoresis, waste liquid regeneration and pigment removal / disposal In addition, the ink pigment can be removed effectively and the waste liquid recycle efficiency is increased, the structure is simplified and miniaturized, and the welded structure is eliminated as much as possible to reduce production and installation costs. The purpose of the present invention is to provide a compact, time-productive cleaning waste liquid regenerating device for a printing press that has reduced the risk of electric leakage and electric shock and improved safety, and a waste liquid regenerating method related to the device. .
[0013]
[Means for Solving the Problems]
The configuration and action of the waste liquid regenerating apparatus of the present invention will be summarized below and described below. The apparatus structure of the liquid regenerating unit is cylindrical, and is disposed sideways (in a state where the cylinder is tilted). Similarly, a cylindrical drum electrode is disposed in a cylindrical container. This drum electrode is connected to an external drive source and is rotatable. At least one layer of a half-cut cylindrical electrode plate is fixedly disposed concentrically with the drum electrode.
The waste liquid is supplied from the upper part of one of the cylindrical containers divided by a partition wall. The other of the cylindrical containers is provided with a discharge hole for extracting the regenerated cleaning liquid. The ink pigment separated from the waste liquid by electrostatic use adheres to the inner and outer surfaces of a rotatable cylindrical earth electrode plate. The adhering ink pigment is discarded outside the container by an ink pigment removing device provided in the upper part of the container. Note that the waste liquid recycling process continues during this disposal operation.
[0014]
Accordingly, the present invention includes a container for introducing a waste liquid containing ink pigment, water, and cleaning liquid used in a printing press, and is provided with at least a pair of electrodes so as to be immersed in the waste liquid in the container, and a voltage is applied thereto. In a washing waste liquid recycling apparatus for a printing press that removes ink pigments attached to one electrode by electrophoresis, a cylindrical container having an axial center disposed substantially horizontally and concentrically disposed inside the container. A rotatable drum electrode, at least one fixed half-cut cylindrical electrode through which waste liquid can pass, a DC power source for applying a voltage using the drum electrode and the half-cut cylindrical electrode as both electrodes, and a peripheral surface of the non-immersed portion of the drum An ink pigment disposal device provided in the immediate vicinity of the container, a waste liquid inlet provided on one side of the upper part of the container, a separation water outlet provided on the bottom of the container, and a container side end far from the waste liquid inlet. Set near the center of the wall Recovering / removing waste liquid by capturing / separating ink pigment on the drum electrode, discarding ink pigment on the captured / separated drum electrode, and extracting separated water At the same time,
Further, the ink pigment disposal apparatus has a waste pipe having a vacuum suction port provided over the entire area of the predetermined bus of the non-immersed part in the vicinity of the outer peripheral surface and the inner peripheral surface of the drum electrode, or substantially over the entire area of the predetermined bus of the non-immersed part. It is a collection waste machine provided with the scraper which touches the drum electrode outside and inside peripheral surface. As a result, when operating the cleaning waste liquid regenerating apparatus, the mass transfer of the system can be maintained in a steady state and continuously operated.
[0015]
Further, in the cleaning waste liquid regenerating apparatus for a printing press according to the present invention, the container is separated by a partition that communicates only with a lower part between a waste liquid regenerating chamber in which electrodes are disposed and a waste liquid introducing chamber near the waste liquid introducing port. Features. As a result, the waste liquid to be introduced and the regenerated liquid after purification are not mixed, and the waste liquid is introduced, regenerated, and regenerated liquid is removed and proceeds almost under the piston flow, and the separated water is separated as a lower layer at the bottom of the cylindrical container. Can be discharged.
[0016]
Further, the cleaning waste liquid regenerating apparatus for a printing press according to the present invention is characterized by having a regenerating liquid receiving tank connected to a regenerating liquid outlet.
[0017]
Furthermore, the cleaning waste liquid recycling apparatus for a printing press according to the present invention has a plurality of fixed half-cut cylindrical electrodes arranged concentrically with the drum electrode, and applies a voltage having a larger potential difference from the drum electrode as the distance from the drum electrode increases. It is possible to do this. Thereby, the separation efficiency can be further increased.
[0018]
Furthermore, the cleaning waste liquid recycling apparatus for a printing press according to the present invention is characterized in that the fixed half-cut cylindrical electrode disposed concentrically with the drum electrode is a metal wire mesh.
[0019]
Furthermore, the cleaning waste liquid recycling apparatus for a printing press according to the present invention is characterized in that the fixed half-cut cylindrical electrode arranged concentrically with the drum electrode is exposed and insulated on the liquid surface. As a result, the trouble of leakage due to plasma discharge caused by a high applied voltage and the risk of electric shock are prevented.
[0020]
Moreover, the spent cleaning liquid reproducing apparatus for a printing press of the present invention, the ink pigment disposal device drum outer and near the inner circumferential surface as described above, having a vacuum suction port provided over substantially the entire region on a given generatrix of the non-submerged portion A waste pipe or a recovery / disposal device provided with a scraper in contact with the outer surface and inner peripheral surface of the drum over almost the entire region on a predetermined bus bar of the non-immersed portion. As a result, the pigment deposited on the drum is not mixed with the waste liquid or the regenerated liquid again, and the removed product can be removed simultaneously while the regeneration process proceeds.
[0021]
Further, the cleaning waste liquid recycling apparatus for a printing press according to the present invention is characterized by further comprising a liquid level gauge for detecting the level of the recycled liquid in the waste liquid recycling chamber. This is a means for controlling the flow rate such as introduction and withdrawal by detecting the liquid level to allow the process to proceed successfully.
[0022]
Furthermore, in the cleaning waste liquid recycling apparatus for a printing press according to the present invention, the rotatable drum electrode is supported by holding a rotary shaft for rotation on one side of the container and is arranged concentrically with the drum electrode. The half-cut cylindrical electrode is supported in a cantilever manner on the inner surface of the container opposite to the drum electrode support side.
[0023]
Furthermore, a cleaning waste liquid recycling method for a printing machine according to another aspect of the present invention introduces waste liquid containing ink pigment, water, and cleaning liquid used in the printing machine into a container, and at least a pair of waste liquids in the container is used. A cylindrical container in which the shaft center is installed almost horizontally in a cleaning waste liquid recycling method for a printing press in which an electrode is immersed, a voltage is applied, and an ink pigment in the waste liquid is adhered to and removed from one electrode by electrophoresis. A conductive drum electrode that can be rotated and is disposed concentrically inside the waste liquid.
A vacuum suction port provided over almost the entire region on the predetermined bus bar of the non-immersed part, or a scraper in contact with the outer surface and the inner peripheral surface of the drum electrode over substantially the entire region of the non-immersed part of the predetermined bus bar in the vicinity of the outer surface and inner peripheral surface of the drum electrode. Prepared,
While applying a DC voltage to both at least one fixed half-cut cylindrical electrode through which the waste liquid can pass, the waste liquid is contacted and distributed, and the ink electrode is captured and separated on the drum electrode while rotating the drum electrode. Then, the regenerated liquid is taken out and the separated water is taken out, while the ink pigment deposited on the drum electrode is removed from the peripheral surface of the non-immersed part of the drum electrode by the vacuum suction port or the scraper to remove the pigment from the waste liquid. Further, it is possible to simultaneously regenerate the waste liquid without being mixed again with the regenerated liquid, discharge the separated water, and discard the ink pigment on the captured and separated drum electrode.
[0024]
Further, the cleaning waste liquid recycling method for a printing press according to the present invention includes a plurality of fixed half-cut cylindrical electrodes arranged concentrically with the drum electrode, and applies a voltage having a large potential difference from the drum electrode as the distance from the drum electrode increases. It is characterized by.
[0025]
Further, in the cleaning waste liquid recycling method of the printing press according to the present invention, the method of removing the ink pigment deposited on the drum electrode on the peripheral surface of the non-immersed portion of the drum electrode is a method using vacuum suction or a method using scraping. It is characterized by that.
[0026]
Although the gist of the present invention has been summarized above, the configuration and operation of the apparatus will be specifically described with reference to FIG. In the following description, the characteristics of a specific example for explanation are taken, and the structure, dimensions, arrangement, material, and the like of specific devices and parts in the specific example are not necessarily intended to limit the present invention.
[0027]
3A is a side sectional view, and FIG. 3B is an AA sectional view of FIG. As shown in the figure, the waste liquid regenerating apparatus 1 of the present invention is a cylindrical container, and this container is arranged horizontally as shown in the figure. Inside the container 2, a waste liquid introduction chamber 80 is provided on the left side of the figure. This waste liquid introduction chamber has a shape in which the container is partitioned by an insulating partition wall 3 and the lower part is opened so that the waste liquid can flow into the right side of the figure. A waste liquid supply pipe 81 is connected to the waste liquid inlet.
[0028]
A pipe connected to a water discharge port for discharging the separated water and an on-off valve 91 are provided in the lower left part of the container 2, and a lower part 90 of the container 2 is a separated water separation chamber.
[0029]
The drum electrode 10 has a cylindrical shape as shown in the figure, and one side is fixed by an insulating disk 4. The insulator disk 4 is in contact with the partition wall 3 and further has a drive shaft 5 attached thereto. The drive shaft 5 protrudes outside the container 2 and can be rotated by a drive device (not shown). Reference numeral 5 a denotes a cover for the rotating shaft 5. Further, the drum electrode 10 is processed with a metal mesh (mesh) metal, and has a structure in which waste liquid can flow. Further, it is grounded from the outside by a ground wire 8a.
[0030]
The half-cut cylindrical electrode functioning as the other pole is fixed to an insulating disk 6 provided on the right side of the container 2 as shown in the figure, and as shown in FIG. It is the shape of. Here, the electrode has a two-layer structure of an electrode 20a and an inner electrode 20b. Insulation terminals 21a and 21b are provided at the upper ends of the respective electrodes to prevent leakage. This electrode is processed with a metal mesh.
[0031]
In this example, a higher voltage is applied to the inner electrode 20b than to the outer electrode 20a. For the application, electric wires for the respective electrodes are wired in a conduit 77 provided via an insulating disc 6 that fixes the electrodes, and voltages 7a and 7b are applied from the power source 7 to the respective electrodes.
[0032]
A liquid level gauge shown in FIG. 60 is attached to the insulator disk 6. The liquid level gauge 60 is connected to a control device (not shown) through a wiring (not shown), and is used for controlling the supply of waste liquid, the discharge of regenerated cleaning liquid and water, and the like.
[0033]
A storage tank 70 for the regenerated cleaning liquid is provided at the right end of the container 2 in the figure. The regenerated cleaning liquid regenerated in the container 2 overflows from the outlet 65 and flows into the storage tank 70 into the tank. Further, a pipe for supplying the regenerated cleaning liquid from the tank 70 to the outside and an on-off valve 71 are provided below the tank 70.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. This is just an example.
[0035]
(First embodiment)
FIG. 1 shows a first embodiment of the present invention. This figure explains the waste liquid recycling method and process.
First, a clean cleaning liquid 62 is supplied into the container 2, and a high voltage of about 10 kv, for example, is applied to the half-cut cylindrical electrode 20a, for example, 8 kv, and 20b. The waste liquid is supplied from the supply pipe 81 to the waste liquid introduction chamber 80 (waste liquid tank). The supplied waste liquid flows into the regeneration unit from the flow hole provided in the lower part.
[0036]
Since the waste liquid that has flowed into the regeneration section has a potential difference of 8 kv between the drum electrode 10 and the half-cut cylindrical electrode 20a, the ink pigment 88 in the waste liquid 11 is attracted to the drum electrode 10 by this potential difference, 9 aggregates and settles to the bottom.
The ink pigment 88 that cannot be separated by the first potential difference passes through the outer wire mesh electrode 20a, but a second potential difference 2 kv is generated between the outer electrode 20a and the inner electrode 20b. Therefore, a part of the ink pigment 88 remaining in the waste liquid 11 aggregates on the outer electrode 20a side, and further aggregates on the drum electrode 10 having a larger potential difference.
[0037]
As a result, all of the ink pigment 88 is aggregated and adsorbed on the drum electrode 10, and the separated water 9 settles in the water separation chamber 90 at the bottom of the container 2.
The separated water 9 stored in the water separation chamber 90 is recovered to the outside by the action of the on-off valve 91 according to the storage state.
[0038]
On the other hand, it flows into the cleaning liquid recovery tank 70 from the regenerated liquid 62 outlet 65 and is stored. After that, when a predetermined amount is reached, it is recovered outside by the action of the on-off valve 71.
[0039]
In the drawing, an example of the situation of the ink pigment 88 that aggregates and adheres to the inner and outer surfaces of the drum electrode 10 with a positive charge is shown. The ink pigment 88 adheres at a portion where the waste liquid 11 is present and a voltage is applied (downward in the drawing). Here, since the drum electrode 10 is rotatable, when a predetermined amount of the ink pigment 88 is adhered, the portion where the ink pigment 88 is adhered is rotated and moved to the upper portion of the container 2 by a driving source (not shown). Thereafter, vacuum suction is performed by the ink pigment disposal apparatus 51 and the exterior is discarded. During this time, the waste liquid 11 is regenerated in the lower part of the container 2.
[0040]
By repeating the above steps, it is possible to dispose of the ink pigment 88 that has been continuously regenerated, recovered, and aggregated. Here, the waste liquid regenerating apparatus 1 applies a high voltage. Waste liquids, water, cleaning liquids, and ink pigments are easy to conduct electricity. Therefore, it is natural that the configuration of the apparatus 1 has a configuration in which complete measures against insulation and leakage are taken.
[0041]
(Second embodiment)
FIG. 2 shows a second embodiment of the invention. Although the basic configuration is the same as that in FIG. 1, an example in which a scraping device 90 is used as a discarding device for the ink pigment 88 attached to the drum electrode 10.
As shown in the figure, scraping scrapers 101 and 103 are brought into contact with the inner and outer surfaces of the drum electrode 10, and the ink pigment 88 scraped off by the scrapers 101 and 103 is recovered in the recovery containers 102 and 104 and discarded to the outside.
However, the present invention is not limited to this method, and a vacuum method and a blade scraping method may be used in combination, or other methods may be used.
[0042]
【The invention's effect】
As described above, according to the waste liquid recycling apparatus and ink pigment disposal method of the present invention, since the apparatus can be easily manufactured with a combination of a commercially available resin-made cylindrical container and a disk, the production cost is low. It can be greatly reduced.
In addition, since the agglomerated ink pigment can be discarded while the waste liquid is being regenerated, continuous work is possible and work efficiency can be improved.
In addition, since the level gauge is installed inside the two-layer electrode plate and in contact with only the regenerated cleaning liquid, there is no concern that the water level gauge will be contaminated with waste liquid.
[Brief description of the drawings]
FIG. 1A is a schematic diagram showing a side cross-section in a first embodiment of the present invention;
(B) is AA sectional drawing in (a).
FIG. 2 (a) is a schematic diagram showing a side cross-section in a second embodiment of the present invention;
(B) is AA sectional drawing in (a).
FIG. 3 (a) is a schematic diagram showing a side cross-section in one example of the present invention;
(B) is AA sectional drawing in (a).
4A, 4B, and 4C are schematic diagrams for explaining the principle of waste liquid regeneration in the waste liquid regeneration apparatus disclosed in Patent Document 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Waste-liquid reproduction | regeneration apparatus 2 Container 3 Insulator partition 4 Disc 5 Partition 5a Rotating shaft cover 6 Disc 7 Power supply 7a Voltage a
7b Voltage b
8 Ground 8a Ground wire 9 Separated water 10 Drum electrode 11 Waste liquid 20a Half-cut cylindrical electrode a
20b Half-cut cylindrical electrode b
21a Insulated terminal a
21b Insulated terminal b
30a Electrode plate a
30b Electrode plate b
50 Suction tube 51 Ink pigment disposal device 60 Level gauge 62 Recycled liquid (cleaning liquid)
65 Recycled liquid outlet 70 Cleaning liquid recovery tank 71 On-off valve 77 Conduit 80 Waste liquid introduction chamber (waste liquid tank)
81 Waste liquid supply pipe 88 Ink pigment 90 Water separation chamber 91 On-off valve 100 Recovery waste container 101 Scraper 102 Recovery container 103 Scraper 104 Recovery container

Claims (11)

A container for introducing a waste liquid containing ink pigment, water, and cleaning liquid used in a printing press is provided, and at least a pair of electrodes are provided so as to be immersed in the waste liquid in the container, a voltage is applied, and one electrode is subjected to electrophoresis. In a cleaning waste liquid regenerating apparatus for a printing press that removes ink pigments from the waste liquid by adhering to the cylindrical container, a cylindrical container having an axial center disposed substantially horizontally, and a rotatable drum arranged concentrically inside the container An electrode, at least one fixed half-cut cylindrical electrode through which the waste liquid can pass, a DC power source for applying a voltage using the drum electrode and the half-cut cylindrical electrode as both poles, and a pole near the peripheral surface of the non-immersed part of the drum Near the center of the container side end wall on the side far from the waste liquid inlet, the waste liquid inlet provided on one side of the upper part of the container, the separation water outlet provided on the bottom of the container Recycled liquid collection provided It has a spout and enables the recycling and removal of waste liquid by capturing and separating the ink pigment on the drum electrode, the disposal of the ink pigment on the captured and separated drum electrode, and the removal of the separated water at the same time. ,
Further, the ink pigment disposal apparatus has a waste pipe having a vacuum suction port provided over the entire area of the predetermined bus of the non-immersed part in the vicinity of the outer peripheral surface and the inner peripheral surface of the drum electrode, or substantially over the entire area of the predetermined bus of the non-immersed part. A cleaning waste liquid reclaiming device for a printing press, comprising: a scrapping and discarding device provided with a scraper in contact with an outer peripheral surface and an inner peripheral surface of the drum electrode .   2. The cleaning waste liquid regeneration of a printing press according to claim 1, wherein the container is separated by a partition which communicates only with a lower part between a waste liquid regeneration chamber in which an electrode is disposed and a waste liquid introduction chamber in the vicinity of the waste liquid inlet. apparatus.   2. The cleaning waste liquid recycling apparatus for a printing press according to claim 1, further comprising a regeneration liquid receiving tank connected to the regeneration liquid outlet.   2. The printing according to claim 1, wherein a plurality of fixed half-cut cylindrical electrodes arranged concentrically with the drum electrode are provided, and a voltage having a larger potential difference from the drum electrode can be applied as the distance from the drum electrode increases. Machine waste liquid recycling equipment.   2. The cleaning liquid recovery apparatus for a printing press according to claim 1, wherein the fixed half-cut cylindrical electrode disposed concentrically with the drum electrode is a metal wire mesh.   2. The cleaning waste liquid recycling apparatus for a printing press according to claim 1, wherein the fixed half-cut cylindrical electrode arranged concentrically with the drum electrode is exposed at the upper end portion of the liquid surface and insulated.   3. The cleaning waste liquid regeneration apparatus for a printing press according to claim 2, further comprising a liquid level gauge for detecting a regeneration liquid level in the waste liquid regeneration chamber.   The rotatable drum electrode is supported with a rotating shaft for rotation on one side of the container, and the fixed half-cut cylindrical electrode arranged concentrically with the drum electrode is opposite to the drum electrode support side. 2. A cleaning waste liquid regenerating apparatus for a printing press according to claim 1, wherein the apparatus is supported by the inner surface of the container on the side. Waste liquid containing ink pigment, water, and washing liquid used in the printing machine is introduced into the container, at least a pair of electrodes are immersed in the waste liquid in the container, a voltage is applied, and the waste liquid is applied to one electrode by electrophoresis. In the cleaning waste liquid recycling method for a printing press in which the ink pigment is adhered and removed, the waste liquid is introduced into a cylindrical container having an axial center disposed almost horizontally, and is disposed concentrically within the cylindrical container. A rotatable conductive drum electrode;
A vacuum suction port provided over almost the entire region on the predetermined bus bar of the non-immersed part, or a scraper in contact with the outer surface and the inner peripheral surface of the drum electrode over substantially the entire region of the non-immersed part of the predetermined bus bar in the vicinity of the outer surface and inner peripheral surface of the drum electrode. Prepared,
While applying a DC voltage to both at least one fixed half-cut cylindrical electrode through which the waste liquid can pass, the waste liquid is contacted and distributed, and the ink electrode is captured and separated on the drum electrode while rotating the drum electrode. Then, the regenerated liquid is taken out and the separated water is taken out, while the ink pigment deposited on the drum electrode is removed from the peripheral surface of the non-immersed part of the drum electrode by the vacuum suction port or the scraper to remove the pigment from the waste liquid. A method for regenerating a waste liquid for washing of a printing press, which makes it possible to simultaneously regenerate the waste liquid without being mixed with the regenerated liquid again, discharge the separated water, and discard the ink pigment on the captured and separated drum electrode.   10. The washing waste liquid for a printing press according to claim 9, wherein a plurality of fixed half-cut cylindrical electrodes arranged concentrically with the drum electrode are provided, and a voltage having a larger potential difference from the drum electrode is applied as the distance from the drum electrode increases. Playback method. The cleaning method for a printing press according to claim 9, wherein the method of removing the ink pigment deposited on the drum electrode on the peripheral surface of the non-immersed portion of the drum electrode is a method using vacuum suction or a method using scraping. Waste liquid recycling method.

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