WO2004060816A1 - 印刷機の廃液再生装置及び廃液再生方法 - Google Patents
印刷機の廃液再生装置及び廃液再生方法 Download PDFInfo
- Publication number
- WO2004060816A1 WO2004060816A1 PCT/JP2003/003359 JP0303359W WO2004060816A1 WO 2004060816 A1 WO2004060816 A1 WO 2004060816A1 JP 0303359 W JP0303359 W JP 0303359W WO 2004060816 A1 WO2004060816 A1 WO 2004060816A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste liquid
- printing press
- water
- container
- chamber
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/06—Separation of liquids from each other by electricity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/30—Recovering used solvents or residues
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4696—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
- C02F2001/46157—Perforated or foraminous electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Definitions
- the present invention relates to an apparatus and a method for regenerating waste liquid generated during washing of a component of a printing press to which ink such as a blanket and a ket cylinder of the printing press adheres.
- a single device separates the three components, and a wastewater recycling device for printing press
- Waste liquid is discharged when the blanket cylinder and impression cylinder of a printing press are washed.
- the cost for disposal (disposal cost) is increased, and the running cost is increased because a large amount of cleaning liquid is used for cleaning the blanket cylinder and the like.
- FIG. 30 shows a schematic configuration of a waste liquid regenerating apparatus used in the sedimentation method.
- the conventional waste liquid regenerating apparatus 51 includes a container 53 for storing a cleaning liquid (waste liquid) 52, and a bottom discharge pipe 54 is connected to a bottom wall of the container 53.
- a side discharge pipe 55 is connected to a side wall of the container 53.
- a concentrated waste liquid recovery container 56 is disposed below the outlet of the bottom discharge pipe 54, and a regeneration washing is provided below the outlet of the side discharge pipe 55.
- a liquid recovery container 57 is provided.
- one bottom discharge pipe 54 An on-off valve 58 is connected to the path, and an on-off valve 59 is connected upstream of the passage of the other side discharge pipe 55, and a filter 60 is provided downstream thereof.
- the waste liquid 52 after washing the blanket cylinder of the printing press and the like is stored in the container 53, and the sedimentation of the ink pigment (also simply referred to as pigment) 61 is promoted.
- the ink pigment 61 is settled at the bottom of the container 53 by adding a chemical to the waste liquid 52.
- the sedimented ink pigment that is, the concentrated waste liquid 63
- the supernatant liquid of the waste liquid 52 is filtered through the side discharge pipe 55 through the filter 60.
- the ink pigment 61 is removed and collected in the regenerating washing liquid container 57.
- the cleaning solution 62 thus obtained is reused.
- the present invention has been made in view of the above-mentioned problems, and enables a high-efficiency regeneration of a cleaning liquid to reduce the waste cost of cleaning waste liquid and the running cost of cleaning a printing machine. It is another object of the present invention to provide a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press, which can improve the productivity of the printing press. Disclosure of the invention
- the present invention has taken the following measures.
- the waste liquid recycling apparatus for a printing press includes a container to which a waste liquid containing the ink pigment, water, and the cleaning liquid used in the printing press is supplied, and a first chamber and a second chamber disposed in the container and configured to have the inside of the container. It is characterized by comprising a metal electrode plate (for example, a wire mesh) through which waste liquid can flow, a high-voltage power supply for applying a voltage to the metal electrode plate, and an earth electrode connected to the first chamber.
- a metal electrode plate for example, a wire mesh
- an electrostatic field is generated in the waste liquid, and the water and the ink pigment are electrostatically aggregated from the waste liquid by using the electrophoresis of the ink pigment by the electrostatic field, and the waste liquid is washed with the washing liquid and the water and ink pigment. And can be separated. Therefore, the cleaning liquid can be regenerated with high efficiency, the cost of washing liquid waste can be reduced, and the running cost of cleaning the printing press can be reduced, which in turn reduces the productivity of the printing press. Improvement can be achieved.
- the number of metal electrode plates is not limited to one, and one or more metal electrode plates through which waste liquid can flow may be arranged. In this case, the metal electrode plates are arranged side by side at intervals so as to partition the second chamber. In addition, each metal electrode including the above-mentioned metal electrode plate that partitions the inside of the container into a first chamber and a second chamber. Connect the high voltage power supply to the board.
- the ink pigment can be surely aggregated and adsorbed on the ground electrode plate, and the waste liquid regeneration performance is improved.
- a waste liquid supply pipe for supplying waste liquid is connected to the first chamber, and a cleaning liquid recovery pipe for recovering the regenerated cleaning liquid is connected to the second chamber.
- the waste liquid supply pipe and cleaning liquid recovery pipe are connected to a blanket cylinder cleaning device that cleans the blanket cylinder of the printing press, and the waste liquid discharged from the blanket cylinder cleaning device is supplied to the first chamber via the waste liquid supply pipe. Then, if the cleaning liquid regenerated in the second chamber is configured to be collected in the blanket cylinder cleaning device via the cleaning liquid recovery pipe, the blanket cylinder is cleaned using the regenerated cleaning liquid while regenerating the waste liquid. Can be performed, and the workability is greatly improved.
- the ground electrode and the metal electrode plate should be placed almost horizontally below the inside of the container, and the metal electrode plate should be placed almost horizontally above the ground electrode inside the container. You can also. According to this, of the cleaning liquid, ink pigment, and water separated from the waste liquid, the cleaning liquid pools above the metal electrode plate, and the ink pigment and water pools near the ground electrode below the metal electrode plate. Therefore, the cleaning liquid, the ink pigment, and the water can be easily collected, and the reuse of the cleaning liquid and the disposal of the water and the ink pigment can be performed easily and smoothly.
- a partition wall may be provided close to one side wall in the container, and a metal electrode plate may be provided between the other side wall and the partition wall facing the one side wall.
- waste liquid supply for supplying waste liquid to an area defined by the partition wall and one side wall.
- Pipes can be connected, and a cleaning liquid recovery pipe that collects the regenerated cleaning liquid can be connected to the area surrounded by the metal electrode plate, the other side wall, and the partition wall. Both the waste liquid supply pipe and the cleaning liquid recovery pipe can be connected to the container. You can connect to the top.
- the ground electrode can be provided so as to be able to be drawn out of the container. This makes it easier to collect and dispose of the ink pigment.
- the ground electrode can also be configured as a metal sheet (for example, aluminum foil) that can be wound into a coil.
- the ink pigment can be recovered by equipping the outside of the container with a feeding device that feeds out the metal sheet and a winding device that winds up the metal sheet sent out from the feeding device and used in the container. ⁇ Disposal becomes easier, and it also contributes to the prevention of contamination in the container and the purification of the cleaning liquid to be reused.
- the surface of the ground electrode is covered with a roll of thin paper, and the thin paper is sent out from the outside of the container to the inside of the container by the feeding device, and the thin paper used in the container is taken up by the winding device.
- the earth electrode may be formed as a rotatable cylindrical metal bar, and the metal electrode plate may be formed in a cylindrical shape so as to surround the outside of the earth electrode. In this case, it is preferable to provide a blade that slides on the metal par and removes the ink pigment adhering to the outer surface of the metal par.
- the earth electrode may be configured as a rotatable metal disk, and a blade may be provided which slides on the metal disk to remove the ink pigment adhering to the outer surface of the metal disk.
- the ground electrode is configured as an endless housing sheet, so that the metal sheet can be driven to rotate by a driving device, and an ink face adhered to the outer surface of the metal sheet by sliding contact with the metal sheet.
- a blade for removing the charge may be provided. Either of these methods makes it easier to collect and dispose of the ink pigment, and also contributes to the prevention of contamination in the waste liquid storage container and the purification of the cleaning liquid to be reused.
- the ground electrode may be made of a conductive protrusion or a mesh-like metal. According to this, the ground electrode becomes less susceptible to the influence of the counter-electric field, and there is no fear that the ink once adhered dissolves in the liquid layer of the container, so that the device can be used for a long time without maintenance. . In this case, if an ultrasonic vibrator is used to vibrate the ground electrode to redissolve the ink pigment adhering to the ground electrode in the cleaning solution, the adhering ink pigment can be more easily removed.
- a metal electrode plate is disposed horizontally or substantially horizontally in a container, a first chamber is formed below a second chamber, and a lower part of the first chamber is formed below the first chamber.
- a third chamber for storing water is provided separately from the metal electrode plate, and an earth electrode is connected to the third chamber. According to this, an electric field is generated between the metal electrode plate and the water interface in the third chamber, so that of the separated waste liquid in the first chamber, the regenerating cleaning liquid moves to the second chamber, and the regenerated water flows into the third chamber.
- the ink pigment settles down and aggregates at the water interface, and the regenerated cleaning solution, regenerated water, and the ink pigment are reliably separated.
- a waste liquid supply pipe for supplying waste liquid is connected to the first chamber
- a cleaning liquid collection pipe for collecting the regenerated cleaning liquid is connected to the second chamber
- a reclaimed water collection pipe for collecting the regenerated water is connected to the third chamber.
- At least one of the washing liquid collecting pipe, the reclaimed water collecting pipe, and the residual liquid collecting pipe is connected to the return flow path communicating with the first chamber, and at least one of the regenerating washing liquid, the regenerating water, and the residual liquid is connected to the first chamber. Be able to return to the room. to this According to this, it is possible to easily reuse the regenerated cleaning solution, the regenerated water, or the residual solution, thereby saving the cleaning solution and reducing the trouble of reusing.
- the third chamber is preferably formed in a funnel shape. More preferably, the inner surface of the third chamber is subjected to an antifouling treatment for preventing the adhesion of the ink pigment. According to this, the ink pigment can be easily collected from the third chamber.
- the waste liquid supply method of the waste liquid supply apparatus for supplying the waste liquid to the first chamber can be operated in an intermittent supply method in which the supply and the stop of the waste liquid are alternately performed. preferable.
- a waste liquid regenerating apparatus using an electrostatic field such as the present invention
- the waste liquid supply method of the waste liquid supply device is set to an intermittent supply method instead of a continuous supply method
- the ink pigment in the first chamber is electrically charged. It migrates and aggregates at the water interface in the third chamber, and the purity of the washing solution in the first chamber gradually increases. For this reason, even if the supply of waste liquid to the first chamber is restarted and the flow of the cleaning liquid from the first chamber to the second chamber occurs, the ink pigment passes through the metal electrode plate together with the cleaning liquid and flows into the second chamber. The possibility of flowing into the room is reduced.
- the waste liquid regenerating apparatus a higher processing capacity can be obtained as a whole as compared with the continuous supply method, and the regenerating processing time can be shortened while maintaining the purity of the regenerating cleaning liquid.
- the supply rate, supply time, and stop time of the waste liquid in the intermittent supply method may be set as fixed values based on experimental results, etc., but preferably, after setting the initial values, In a different way. That is, first, the regenerated waste water separated in the first chamber and collected in the second chamber A detector (first detector) detects a physical quantity (for example, the transmittance of the regenerated cleaning liquid) that correlates with the concentration of the ink pigment in the cleaning liquid or the concentration of the pink pigment in the regenerated cleaning liquid.
- a physical quantity for example, the transmittance of the regenerated cleaning liquid
- At least one of a supply speed, a supply time, and a stop time of the waste liquid by the waste liquid supply device such that the concentration of the ink in the regenerated cleaning solution falls within a predetermined regulation range.
- the optimum value of the waste liquid supply speed, supply time, and stop time in the intermittent supply method varies depending on the concentration of the waste liquid, etc.In this way, by feeding back the ink pigment concentration of the regenerating cleaning solution, the regenerating cleaning solution is always supplied. The purity can be maintained.
- the waste liquid supply device can be operated in a continuous supply method of continuously supplying waste liquid in addition to the intermittent supply method, and is configured to be switchable between an intermittent supply method and a continuous supply method.
- the waste liquid is a mixture of ink pigment, water, and washing liquid, but the water and the washing liquid are separated vertically during storage due to the difference in specific gravity. For this reason, a waste liquid mainly composed of water may be supplied.In such a case, even if the waste liquid is continuously supplied, the purity of the cleaning liquid in the first chamber does not decrease, and the supply speed is high. It is unlikely that the ink pigment will pass through the metal electrode plate and flow into the second chamber together with the cleaning liquid even if the waste liquid is supplied in the above.
- the intermittent supply method is used as described above when the cleaning liquid containing the ink pigment is mainly the waste liquid, while the intermittent supply method is switched to the continuous supply method when the cleaning liquid mainly containing water is the waste liquid.
- the processing capacity can be further increased, and the overall reproduction processing time can be further reduced.
- switching between the intermittent supply method and the continuous supply method may be performed manually, but more preferably, automatic switching is performed by the following method. That is, first, the concentration of water in the waste liquid supplied to the first chamber by the waste liquid supply device, or a physical quantity correlated with the concentration of water in the waste liquid (the first detection device). 2). Then, according to the detection result, the switching device switches the waste liquid supply system of the waste liquid supply device, and when the concentration of water in the waste liquid is within a predetermined range, the waste liquid supply device is operated in the intermittent supply system, and the waste liquid supply device is operated. If the water concentration exceeds the specified range, the waste liquid supply device should be operated in a continuous supply system. By performing the automatic switching in this way, the waste liquid supply method can be switched accurately, and the overall processing capacity can be further increased and the regeneration processing time can be further reduced. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a longitudinal sectional view of a waste liquid storage container showing a waste liquid regenerating apparatus for a printing press as a first embodiment of the present invention, and is a cross-sectional view taken along the line BB of FIG.
- FIG. 2 is a cross-sectional view of a waste liquid storage container showing a waste liquid regenerating apparatus of a printing press as a first embodiment of the present invention, and is a cross-sectional view taken along line AA of FIG.
- FIG. 3 is a schematic diagram for sequentially explaining the principle of a waste liquid regenerating apparatus for a printing press and a waste liquid regenerating method for a printing press as a first embodiment of the present invention.
- FIG. 4 (a) is a cross-sectional view of a waste liquid storage container showing a waste liquid regenerating apparatus of a printing press as a first embodiment of the present invention.
- FIG. 4 (b) is a graph showing the potential difference in the waste liquid storage container corresponding to the cross-sectional position of the waste liquid storage container in FIG. 4 (a).
- FIG. 5 is a system configuration diagram showing a state in which the waste liquid regenerating device of the printing press as the first embodiment of the present invention is incorporated in a cleaning device.
- FIG. 6 is a cross-sectional view of a waste liquid storage container showing an example of a method of removing an ink pigment adhered to a ground electrode plate in a waste liquid regenerating apparatus for a printing press as a first embodiment of the present invention.
- FIG. 7 (a) is a schematic plan view of a waste liquid storage container showing a waste liquid regenerating apparatus for a printing press according to a second embodiment of the present invention.
- FIG. 7 (b) is a schematic cross-sectional view of the waste liquid storage container of FIG. 7 (a) viewed from the side.
- FIG. 8 is a schematic sectional view for explaining the operation of the waste liquid regenerating apparatus for a printing press according to the second embodiment of the present invention.
- FIG. 9 is a schematic sectional view for explaining the operation of the waste liquid regenerating apparatus for a printing press according to the second embodiment of the present invention.
- FIG. 10 is a diagram showing a waste liquid regenerating device of a printing press as a third embodiment of the present invention, and is a schematic cross-sectional view of a waste liquid storage container viewed from a side.
- FIG. 11 is a diagram showing a waste liquid regenerating device of a printing press as a fourth embodiment of the present invention, and is a schematic cross-sectional view of a state where a ground electrode is pulled out as viewed from the side of a waste liquid storage container. is there.
- FIG. 12 is a diagram showing a waste liquid regenerating apparatus of a printing press as a fourth embodiment of the present invention, and is a schematic cross-sectional view of a waste liquid storage container viewed from a side.
- FIG. 13 is a view showing a modified example of the waste liquid regenerating apparatus of the printing press as the fourth embodiment of the present invention, and is a schematic cross-sectional view of the waste liquid storage container viewed from the side.
- FIG. 14 is a diagram showing a waste liquid regenerating apparatus of a printing press as a fifth embodiment of the present invention, and is a schematic cross-sectional view of a waste liquid storage container viewed from a side.
- FIG. 15 is a diagram showing a waste liquid regenerating apparatus for a printing press as a sixth embodiment of the present invention, and is a schematic cross-sectional view of a waste liquid storage container viewed from a side.
- FIG. 16 (a) is a horizontal sectional view of a waste liquid regenerating apparatus for a printing press according to a seventh embodiment of the present invention [a sectional view taken along the line C-C in FIG. 16 (b)].
- Fig. 16 (b) is a schematic cross-sectional view of the waste liquid storage container viewed from the side.
- FIG. 17 (a) is a schematic cross-sectional view of a waste liquid storage container showing a waste liquid regenerating apparatus for a printing press according to an eighth embodiment of the present invention, as viewed from the side.
- FIG. 17 (b) is a cross-sectional view taken along the line DD in FIG. 17 (a).
- FIG. 18 (a) is a horizontal sectional view of a waste liquid regenerating apparatus for a printing press according to a ninth embodiment of the present invention [a sectional view taken along the line CC of FIG. 18 (b)].
- Fig. 18 (b) is a schematic cross-sectional view of the waste liquid storage container viewed from the side.
- FIG. 19 is a view showing a waste liquid regenerating apparatus of a printing press as a tenth embodiment of the present invention, and is a schematic cross-sectional view of a waste liquid storage container viewed from a side.
- FIG. 20 is a view showing a waste liquid regenerating apparatus of a printing press according to the eleventh embodiment of the present invention, and is a schematic cross-sectional view of the waste liquid storage container viewed from a side.
- FIG. 21 is a schematic diagram for sequentially explaining the principle of a waste liquid regenerating apparatus for a printing press and a waste liquid regenerating method for a printing press as the eleventh embodiment of the present invention.
- FIG. 22 is a diagram showing a waste liquid regenerating process by the waste liquid regenerating device of the printing press according to the first embodiment of the present invention, and is a schematic cross-sectional view of the waste liquid storage container viewed from the side. is there.
- FIG. 23 is a diagram showing a waste liquid regenerating process performed by the waste liquid regenerating apparatus of the printing press according to the first embodiment of the present invention, and is a schematic cross-sectional view of the waste liquid storage container as viewed from the side. .
- FIG. 24 is a diagram showing a waste liquid regenerating process by the waste liquid regenerating device of the printing press according to the eleventh embodiment of the present invention, and is a schematic cross-sectional view of the waste liquid storage container viewed from the side.
- FIG. 25 (a) is a plan view showing a water tank for water recovery according to a 12th embodiment of the present invention.
- FIG. 25 (b) is a schematic cross-sectional view of FIG. 25 (a) viewed from the side.
- FIG. 26 shows a waste liquid recycling apparatus for a printing press according to a thirteenth embodiment of the present invention.
- FIG. 3 is a schematic view showing a cross section viewed from the side direction and a waste liquid supply system and a control system.
- FIG. 27 is a diagram showing a waste liquid supply method according to the thirteenth embodiment of the present invention in comparison with a conventional waste liquid supply method.
- FIG. 28 is an explanatory diagram for explaining the operation and effect of the waste liquid supply system according to the thirteenth embodiment of the present invention.
- FIG. 29 is a view showing a waste liquid regenerating apparatus of a printing press according to a 14th embodiment of the present invention, and is a schematic view showing a cross section viewed from the side and a waste liquid supply system and a control system. is there.
- FIG. 30 is a configuration diagram showing a conventional waste liquid regenerating apparatus for a printing press.
- FIGS. 1 to 6 show a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press according to a first embodiment of the present invention
- FIGS. Fig. 3 is a schematic diagram illustrating the principle of the device and the method
- Fig. 4 (a) and Fig. 4 (b) illustrate the structure of the device.
- FIG. 5 is a system configuration diagram showing a state in which the present apparatus is incorporated in a cleaning apparatus
- FIG. 6 is a view showing an example of a method of removing an ink pigment attached to a ground electrode plate in the present apparatus.
- This waste liquid regeneration principle is based on the following principle.
- an electrostatic field is generated in waste liquid 11 and ink pigment 6 1 Is electrophoresed in a waste liquid and water 9 is electrostatically coagulated to separate the ink pigments 61, 79 and the washing liquid 62.
- the waste liquid 11 supplied to the container Water 9, ink pigment 61, and cleaning liquid 62 are mixed, but electrode plates 3, 4 are installed on one side and the other side of such waste liquid 11, and the electrode plate 3 is grounded. When a high voltage is applied to the electrode plate 4, the electrode plate 4 becomes a positive electrode.
- the water 9 and the ink pigment 61 are completely separated from each other, and as shown in FIG. Aggregate in groups and settle to the bottom by gravity.
- the positively-charged ink pigment 61 adheres to the earth electrode plate 3, which is a single pole.
- the water 9 and the ink pigment 61 are completely separated from the cleaning liquid 62, and a clean cleaning liquid 62 (that is, a cleaning regenerating liquid 26) is obtained.
- Fig. 4 (a) is a schematic diagram that further embodies the configuration of an apparatus for regenerating waste liquid by utilizing such a principle.
- the waste liquid storage container hereinafter simply referred to as the waste liquid storage container
- a plate-like ground electrode plate 20 is installed along one side of the inside of the container 2 and the first voltage is applied to the point within the container 2 away from the ground electrode plate 20 by a distance A.
- An electrode plate (hereinafter, also simply referred to as an electrode plate) 30a is installed in parallel with the ground electrode plate 20.
- the second The applied electrode plate 30b is placed in parallel with the ground electrode plate 20 and the electrode plate 30a. Therefore, the inside of the container 2 is formed by two electrode plates 30a and 30b (indicated by 30 when each electrode plate is not distinguished) from the one side toward the other side.
- the electrode plates 30a and 30b are made of a mesh-like metal plate (for example, a metal mesh of 200 mesh). Since the metal net-like metal electrode plate is used, the waste liquid 11 can flow between the regions a, b, and c.
- a grounding electrode plate 20 for aggregating the ink pigment 61 is connected to the ground 8.
- the electrode plates 30a and 3Ob are connected to a high-voltage power supply (hereinafter simply referred to as power supply) 7 via different voltage loads (electrical resistances) 7a and 7b so that different voltages can be applied respectively. Have been. Then, a clean cleaning solution 62 is first supplied into the container 2. A high voltage of about 8 kV (kilovolt) is applied to the first applied electrode plate 30a, and a higher voltage of about 10 kV, which is larger than that, is applied to the second applied electrode plate 30b. Is applied.
- the waste liquid 11 remaining with a part of the ink pigment 61 passes through the first applied electrode plate 30a of the wire mesh and moves to the second area b.
- the second region b since a potential difference of 2 kV is generated between the first applied electrode plate 30a and the second applied electrode plate 30b, it remains in the waste liquid 11
- the first applied electrode plate 30 a has 8 kV and the second applied electrode plate 30
- the potential difference between the first applied electrode plate 30 a and the second applied electrode plate 30 b is 2 kV, and as shown in FIG. 4 (b)
- a sufficient voltage gradient is obtained, and the electric field is clearly increased nearer the ground electrode plate 20, so that the ink pigment 61 and the water 9 can be surely separated.
- a third applied electrode plate 30c is provided on the other side of the container 2 [the left end in FIG. 4 (a) opposite to the ground electrode plate 20].
- a voltage of 8 kV is applied to a
- a voltage of 9 kV is applied to the second applied electrode plate 30 b
- a voltage of 10 kV is applied to the third applied electrode plate 30 c
- the voltage gradient is as shown in Fig. 4 (b).
- the electric field is weaker and weaker in the second and third regions b and c, and the electric field is stronger in the second region b than in the third region c, but the difference is small.
- each embodiment of the present invention is configured.
- the waste liquid regenerating apparatus of the printing press according to the first embodiment is configured as shown in FIGS.
- an earth electrode plate 20 for aggregating the ink pigment is arranged on one side (the right end in FIG. 1) in the container 2.
- An insulator 21 is interposed between the ground electrode plate 20 and the wall of the container 2, and an upper portion of the ground electrode plate 20 is covered with the insulator 22. This prevents a short circuit from occurring between 0 and another electrode plate.
- the first applied electrode plate 30a is set in parallel with 20 and the ground electrode plate 20 and the electrode ⁇ 30a are positioned in the container 2 at a position close to the electrode plate 30a to some extent.
- Two application electrode plates 30 b are provided. Electrode plate 30 a,
- Reference numeral 30b denotes a wire mesh metal electrode plate made of, for example, a wire mesh of 200 mesh, and the first to third regions a, b, and c separated by the electrode plates 30a and 30b.
- the distribution of waste liquid 11 is now possible.
- the upper portions of the applied electrode plates 30a and 30b are also covered with insulators 31a and 31b to prevent short circuit between the electrode plates.
- a power source 7 is connected to the applied electrode plates 30a and 30b via different voltage loads 7a and 7b so that different voltages are applied to the applied electrode plates 30a and 30b, respectively.
- a sufficiently high voltage is applied to the applied electrode plates 30a and 3Ob, and a voltage higher than the first applied electrode plate 30a is applied to the second applied electrode plate 30b.
- the electric field generated by the application of the voltage is set so that the first region a is clearly (that is, with a clear difference) stronger than the second region b.
- the lower part of the first region a in the vessel 2 contains the coagulated and separated water 9 It functions as a tank (sedimentation part) 2 a in which water sinks, and a recovery hole 36 is provided at the lower part of the container 2 to collect the water 9 settled here.
- a collection pipe 38 is connected to the collection hole 36 via a collection valve 37.
- the washing liquid 62 is insulative because it is insulative. However, since the water 9 is conductive, the sedimentation part where water 9 settles (lower part of the first area a) 2a electrode part in a (earth electrode) The lower part of the plate 20 and the electrode plate 30a) is covered with insulators 23 and 33.
- a recovery hole 27 for recovering the cleaning liquid 62 is provided in the upper part of the third area c where the cleaning liquid 62 in which the ink pigment 61 and the water 9 are separated and regenerated is stored is stored.
- a collection pipe 29 is connected to the collection hole 27 via a collection valve 28.
- a clean cleaning liquid 62 is supplied into the container 2, and the waste liquid 1 1 is stored in the container 2.
- a sufficiently high voltage for example, 8 kV
- the second applied electrode plate 30b is applied with a voltage higher than that of the first applied electrode plate 30a.
- a higher voltage for example, 10 kV
- the large amount of potential difference (8 kV) between the moving earth electrode plate 20 and the first applied electrode plate 30 a causes the ink pigment 6 1 Is sucked into the ground electrode plate 20, and the water 9 aggregates and settles to the bottom.
- the remaining waste liquid 1 1 of some of the ink pigments 6 1 passes through the first application electrode plate 30 a of the wire mesh and moves to the second area b, but in this second area b, Between the first applied electrode plate 30a and the second applied electrode plate 30b.
- the water 9 that has settled at the bottom (tank) 2 a in the first area a is recovered to the outside through the recovery hole 36 through the recovery pipe 38 by opening the recovery valve 37.
- the recovery pulp 28 By opening the recovery pulp 28, the regenerated washing liquid 62 is recovered outside through the recovery pulp 28 from the recovery hole 27 provided in the upper part of the third area c and reused. You.
- the waste liquid regenerating apparatus 15 when configured as a system incorporated in a cleaning apparatus of an actual printing press, the system is as shown in FIG. As shown in FIG. 5, in the cleaning device 70, the cleaning roller 71 is pressed against the rotating blanket cylinder 90 shown on the left side of FIG. The cleaning liquid 62 supplied from 5 is sprayed. As a result, the cleaning liquid 62 jetted from the nozzle 75 cleans the blanket cylinder 90 via the blade 74 and the cleaning roller 71.
- the waste liquid 11 after washing is collected in a recovery tank 78 provided below, and transferred to a regenerating device 15 through a pipe 76.
- 72 is blanket. These are the drying nozzles of the body and 73 are air motors, but these are not necessities of the present invention.
- the regenerating device 15 shown on the right side in FIG. 5 is the waste liquid regenerating device of the printing press according to the above-described embodiment, and the same reference numerals as those in FIGS. 1 and 2 denote the same components and will not be described in detail.
- the waste liquid 11 from the cleaning device 70 is sent from the supply pipe 25 to the first area (waste liquid supply area) a in the container 2 via the pipe 76 to the pipe 24, and is sent to the regeneration apparatus 15.
- the three components are separated from the waste liquid 11 in which the three components of the ink pigment 61, the insulating cleaning liquid 62, and the conductive water 9 are mixed.
- the washing regenerating solution 26 regenerated by the regenerating device 15 is sucked up from the collecting hole 27 provided in the third area (processed layer) c of the container 2 through the collecting pipe 29. Then, it is supplied as a cleaning liquid 62 to the cleaning liquid nozzle 75 of the cleaning device 70.
- the water 9 that has settled below the first area (waste liquid supply area) a passes through the recovery hole 36 and the pipe 38 to the cleaning liquid nozzle 75 of the cleaning device 70 in the same manner as the regenerating liquid 26. Supplied to. Then, the recovered water 9 and the regenerating liquid 26 (the cleaning liquid 62) sent to the cleaning device 70 are sent to the cleaning liquid injection nozzle 75, and are injected from the nozzle 75 to the cleaning roller 71, and the blanket is discharged. Used for cleaning the cylinder 90.
- the cleaning liquid 62 can be regenerated with high efficiency, the disposal cost of the cleaning liquid 11 can be reduced, and the running cost for cleaning the printing press can be reduced. As a result, the productivity of the printing press can be improved.
- the ink that has been aggregated and adsorbed on the ground electrode plate 20 by electrophoresis The pigment 61 must be removed from the ground electrode plate 20.
- the method shown in Fig. 6 can be considered.
- the same reference numerals as those in FIGS. 1 and 2 denote the same components, and a description thereof will be omitted.
- this method uses a so-called stripping jig.
- the stripping jig is driven by a cylinder motor (not shown) and slides along the surface of the ground electrode plate 20.
- Slide bar 50a to be slid, and a stripping plate 50 fixed to the end of the slide bar 50a.
- the slide bar 50a is operated to ground the stripping plate 50.
- the ink pigment 61 adhered to the surface of the ground electrode plate 20 is dropped down.
- the stripping plate 50 is made to stand by at the top during the reproduction process.
- the capacity (liquid storage amount) of the container 2 was set to 600 cc, and the distance between the electrodes between the ground electrode plate 20 and the first applied electrode plate 30a (see FIG. 4 (a) and FIG. 4)
- the distance A) shown in (b) is set to 20 mm, and the distance between the electrodes between the first applied electrode plate 30a and the second applied electrode plate 30b (see FIG. 4 (a) and FIG. 4 (b)). Is 20 mm, and the distance between the electrodes between the second applied electrode plate 30 b and the other end of the container 2 (the distance C shown in FIGS. 4 (a) and 4 (b)) is 20 mm.
- the first applied electrode plate 30a was set to 8 kV
- the second applied electrode plate 30b was set to 10 kV
- the waste liquid was a single wafer ink (for example, Hi-Echo MZ ( Toyo Ink), Cervo Y (Tokyo Ink), Joss-GN (Dai Nippon Ink)]
- washing liquids include, for example, Autoclean (Niken Kagaku), Braclin S (Nitsuka), Print Use LINA (made by Toyo Ink).
- the washing waste liquid can be completely separated into water, ink pigment, and the washing liquid.
- the ink pigment 61 adhered to the surface of the ground electrode plate 20 can be wiped down by the peeling plate 50, the ink pigment that has fallen off can be removed. It falls at the bottom of the bed and accumulates inside the storage tank for water 9. For this reason, it is necessary to periodically perform cleaning so as to remove the ink pigment 61 in the storage layer.
- a device for removing the ink pigment 61 from the ground electrode plate 20 such as the peeling plate 50 may be provided, and the ink pigment removing process and its removal process may be provided. If the time is adjusted, the cost and time required to remove the separated ink pigment may be increased.
- the cleaning liquid can be regenerated with high efficiency, and the equipment cost and running cost for removing and disposing of the separated ink pigment can be reduced, and the productivity of the printing press can be improved.
- the following embodiments have been devised.
- FIGS. 7A, 7B, 8 and 9 show a waste liquid regenerating apparatus and a waste liquid regenerating apparatus for a printing press according to a second embodiment of the present invention.
- Fig. 7 (a) is a schematic plan view of the waste liquid storage container
- Fig. 7 (b) is a schematic cross-sectional view of the waste liquid storage container viewed from the side
- FIG. 9 is a schematic sectional view illustrating the operation.
- the same reference numerals as those in the above-mentioned drawings indicate the same components, and a description thereof will be partially omitted.
- the earth electrode plate (earth electrode) 20 and the applied electrode plate 30 are set up vertically in the waste liquid storage container 2.
- a plate-like earth electrode plate (earth electrode) 20 and an applied electrode plate 30 are provided in a waste liquid storage container 2. It is arranged horizontally inside.
- two application electrode plates 30 are provided as in the first embodiment.
- the ground electrode plate 20 is connected to the ground 8, and the electrode plates 30a and 30b are connected to different voltage loads (7a and 7b via high voltage
- the connection to the power supply 7 is the same as in the first embodiment.
- a ground electrode plate 20 is disposed substantially horizontally below the waste liquid storage container 2, and the metal electrode plates 30 a and 30 b are disposed substantially above the ground electrode plate 20 in the container 2. It is arranged horizontally.
- the container A partition wall 19 is disposed close to one side wall 2 b of the inside 2, and a region defined by the partition wall 19 and the one side wall 2 is a waste liquid charging section into which a waste liquid 11 is charged.
- the metal electrode plates 30a and 3Ob are provided between the partition wall 19 and the other side wall 2c facing the one side wall 2b in the container 2, respectively. is arranged via d.
- the ground electrode plate 20 is provided so as to cover the entire bottom of the container 2.
- the inside of the container 2 is formed by the electrode plates 30a and 30b from below to above in the first region (also referred to as the first layer or the input layer) a, the second region (the second region). B) and 3rd area (also called 3rd layer or processed layer) c.
- the waste liquid 11 can flow between the areas a, b and c. Further, the waste liquid charging section 2A on one side wall 2b side of the container 2 forms a part of the first region (first layer) a.
- the upper area (third layer) c in the container 2 is provided with a first recovery hole 27 for recovering the regenerated cleaning solution 62, and the lower area (first layer) in the container 2 is provided.
- the layer (a) is provided with a second recovery hole (36) for recovering the ink pigment (61) and water (9) separated from the cleaning liquid (62).
- Each of the recovery holes 27 and 36 is configured in the same manner as in the first embodiment.
- the cleaning waste liquid 11 is charged into the container 2 from the waste liquid charging section 2A as shown in FIG. Then, the waste liquid 11 is put into the position indicated by the two-dot chain line e, and the waste liquid 11 is supplied into the container 2 from the waste liquid charging section 2A.
- the supplied waste liquid enters the second area (treatment layer) b along the direction of arrow Y.
- the waste liquid 11 is applied by the applied electrode plates 30a, 30b, and the water 9 And an ink pigment 6 1 and a washing liquid 62.
- the cleaning liquid 62 that has been separated and regenerated neatly is stored in the third region (processed layer) layer c on the upper part of the container 2.
- the waste liquid introduction section 2A is provided so as to communicate with the first area (input layer) a, the cleaning liquid 62, the water 9, and the ink pigment 61 from the waste liquid 11 can be more smoothly separated. become.
- the separated water 9 sinks to the lower part of the container 2 and is stored in the first area a directly above the ground electrode 20.
- the water 9 itself acts as an earth, and agglutinates and adheres the ink pigment 61 near the interface of the water 9.
- the separated ink pigment 61 adheres to the surface of the water 9 and is stored.
- the amount of the washing liquid 62 in the container 2 increases by the amount of the supplied waste liquid 11, and rises to, for example, a position indicated by a two-dot chain line f in FIG. As a result, the cleanly regenerated washing liquid can be collected from the pipe 29 through the pulp 28 through the collecting hole 27.
- the ink pigment 61 separated and stored from the waste liquid 11 can be easily disposed of together with the water 9, eliminating the need for a disposal-related device, and allowing the exhaust to be exhausted in a short time, thereby reducing operating costs. Can also be cheaper.
- the separated ink pigment 61 and water 9 do not dissolve in the cleaning liquid 62 even if left for a long time (one year or more). The time spent on disposal of the ink pigment 61 is almost unnecessary.
- FIG. 10 is a schematic sectional view showing a waste liquid regenerating apparatus for a printing press as a third embodiment of the present invention.
- the same reference numerals as those in the above-mentioned drawings indicate the same components, and a description thereof will be partially omitted.
- the waste liquid regenerating apparatus for a printing press is configured as described above, two sets (two sheets) of the applied electrodes 30a and 30b are used as in the second embodiment.
- the effect of the electrostatic filter is slightly reduced compared to the case of, and the effect of separating waste liquid 11 into water 9, ink pigment 61, and washing liquid 62 is weakened, but it still has some degree of separation. The effect is obtained, and depending on the type of washing waste liquid (the type of washing liquid and ink pigment), sufficient separation can be performed in a short time.
- the waste liquid can be sufficiently regenerated even if the configuration is further simplified by using only one set of applied electrodes as in the present embodiment. .
- FIGS. 11 to 13 are views showing a waste liquid regenerating apparatus and a waste liquid regenerating method of a printing press as a fourth embodiment of the present invention.
- 1 and 12 are schematic sectional views showing the waste liquid regenerating apparatus
- FIG. 13 is a schematic sectional view showing a modification of the waste liquid regenerating apparatus.
- the same reference numerals as those in the above-mentioned figures indicate the same parts, The description of some of them will be omitted.
- the waste liquid regeneration device of the present embodiment is the same as that of the second embodiment, except that the ground electrode 20 disposed at the lower part of the container 2 can be drawn out of the container 2.
- an opening 2B is provided in the lower portion of the container 2
- a conductive adapter earth electrode fixing adapter
- one end of the ground electrode 20 is fixed to the conductive adapter 100.
- the conductive adapter 100 When the conductive adapter 100 is attached to the opening 2B, the opening 2B is sealed by the conductive adapter 100 so that the container 2 does not leak.
- the ground electrode 20 is connected to the ground 8 via the conductive adapter 100.
- the waste liquid regenerating device for a printing press is configured as described above. Therefore, when the ink pigment 61 is discarded, the ground electrode 20 is disposed as shown in FIG. As shown, the ink pigment 61 drawn out of the container 2 and deposited on the ground electrode 20 can be discarded.
- the ink material 61 will be deposited on the ground electrode 20, so if the ground electrode 20 is pulled out of the container 2, The ink pigment 61 can be easily discarded.
- the cleaning solution 62 in the container 2 should be collected as much as possible. Then, as shown in Fig. 12, slide the ground electrode fixing adapter 100 and pull the ground electrode 20 out of the container 2. Along with this, the water 9 and the ink pigment 61 stored in the upper part of the ground electrode 20 and some washing liquid are discarded outside the container.
- the ground electrode fixing adapter 100 may be slid (removed). When the ground electrode 20 is drawn out of the container 2, the ground electrode 20 may be cleaned.
- the separated ink pigment 61 can be easily disposed of outside the container 2, and the device configuration can be made relatively simple. Further, since the ground electrode 20 is drawn out of the container 2, there is an advantage that the inside of the main container 2 can be easily cleaned.
- a pair of applied electrode plates 30 (one sheet).
- the present invention can be applied to a plurality of (for example, two) sets of applied electrode plates 30 (second embodiment).
- the ground electrode 20 in the case where the ground electrode 20 is disposed vertically, the ground electrode 20 can be pulled out upward, the ground electrode 20 is removed, and the ground electrode 20 is removed.
- the attached ink pigment 61 may be removed. In this way, the number of combined electrode plates and the installation method of the ground electrode can be freely selected.
- FIG. 14 is a schematic cross-sectional view showing a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press as a fifth embodiment of the present invention.
- the same reference numerals as those in the above-mentioned figures indicate the same parts, and the description thereof will be partially omitted.
- aluminum-Um foil 40 is used as a ground electrode, and both surfaces of this aluminum foil 40 are provided with an inking pigment 6 1. It is configured to adhere.
- a new aluminum foil 40 is coiled and mounted on the feeding device 41 outside the container 2, and the guide roll 4 inside the container 2 and the guide roll 4 outside the container 2 are provided.
- the aluminum foil 40 is fed through the guide 4 and wound up by the winding device 42 outside the container 2.
- a ground electrode 8 is connected to the aluminum foil 40 via a sliding contact terminal 8a.
- the unwinding device 41 is equipped with a reel on which coiled aluminum foil 40 is wound, and the winding device 42 is equipped with a reel on which aluminum foil 40 can be wound.
- the reel on the take-up device 42 is rotated by a motor or manually, the reel on the feed device 41 is rotated in accordance with the rotation, and the aluminum foil 40 is pushed out.
- the aluminum foil 40 is charged by the ground electrode 8 and the waste liquid 11 in the container 2 is charged.
- the ink pigment 61 in the waste liquid 11 in the container 2 adheres to the surface (both front and back) of the aluminum foil 40.
- the new aluminum foil 40 enters the waste liquid 11 in the container 2, attaches the ink pigment 61, and is wound by the other winding device 42.
- the aluminum foil 40 may be moved at a very low speed at all times, or may be stopped at a certain time and then moved at a predetermined cycle.
- the ink pigment 61 separated from the cleaning liquid 62 is adhered and collected on the aluminum foil 40, so that the ink pigment 61 adheres to the container 2. Contamination can be prevented.
- the recovered ink pigment 61 can be discarded together with the aluminum-yume foil 40, Equipment and environmental pollution can be prevented.
- the configuration of the removal apparatus using this method is compact and the production cost is low.
- the aluminum foil 40 may be, for example, a commercially available aluminum foil or the like, there is an advantage that the running cost can be relatively reduced.
- the unwinding device 41 and the winding device 42 are interlocked, and the unwinding device 41 is similar to the winding device 42.
- the reel may be driven by a motor or the like.
- another conductive metal thin film metal sheet may be used instead of the aluminum foil 40.
- FIG. 15 is a schematic sectional view showing a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press according to a sixth embodiment of the present invention.
- the same reference numerals as those in each of the above-described figures denote the same parts, and a description thereof is partially omitted.
- the ink pigment 61 is adhered to the surface of the thin paper 94 to remove the ink pigment 61 together with the thin paper 94. That is, in this method, the ground electrode plate 20 is set in the container 2, and the thin paper 94 is pressed against both surfaces of the ground electrode 20 through the plurality of guide rollers 93. As shown in Fig. 15, this thin paper 94 is made from a new thin paper 94 in the form of a coil (roll) and installed in the feeding device 91 outside the container 2 and then into the container 2. The guide roller 93 is used as a guide, and the guide roller 93 is transported and wound by the winding device 92 outside the container 2. The thin paper 94 sent out from the feeding device 91 is charged because it is pressed against the ground electrode plate 20 in the liquid in the container 2.
- the ink pigment 61 in the liquid in the container 2 contains thin paper 94. Adheres to the surface of the surface. If the thin paper 94 to which the ink pigment 61 has adhered is taken up by the other take-up device 92, the unnecessary ink pigment 61 together with the thin paper 94 can be easily collected. Then, the thin paper 94 wound with the ink pigment 61 attached thereto and taken up by the winding device 92 can be discarded as it is.
- the thin paper 94 in the liquid layer in the container 2 may always be finely moved, or may be repeatedly moved and stopped in a predetermined cycle.
- the ink pigment removing device in which the thin paper 94 is formed into a coil shape, adhesion of the ink pigment 61 to the container 2 and contamination of the regenerated cleaning liquid can be easily prevented.
- the attached ink pigment is discarded together with the thin paper 94, which has the effect of preventing equipment and environmental pollution. Furthermore, there is an advantage that the configuration of the removing device is easy, the manufacturing cost can be reduced, and the running cost can be reduced because thin paper is used.
- the feeding device 41 and the winding device 42 are interlocked, and the feeding device 41 is also used as a winding device.
- the reel may be driven by a motor or the like.
- FIGS. 16 (a) and 16 (b) show a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press as a seventh embodiment of the present invention.
- Fig. 16 (a) is a horizontal cross-sectional view [cross-sectional view taken along the arrow C-C in Fig. 16 (b)]
- Fig. 16 (b) is a schematic view seen from the side of the waste liquid storage container.
- the container 2 is formed as a quadrangle (square) in plan view, and a cylindrical ground electrode 8 is provided at the center of the container 2. 0 is arranged.
- the application electrode plate 35 is formed in a cylindrical shape,
- the cylindrical ground electrode 80 is arranged on the outer periphery.
- the applied electrode plate 35 has an inner layer, an outer layer, and two layers.
- the first layer has a cylindrical metal net 35a, and the second layer has the same structure.
- Wire mesh electrodes 35b are provided.
- the electrode 35a of the first layer close to the cylindrical earth electrode 80 is 10 kV (kilovolt) for the electrode 35a, and the second layer is 12 kV (kilovolt) higher than the first layer. ) Is applied.
- These voltage values are only a guide and are not limited to these values.
- cylindrical electrode 80 is driven to rotate by a motor 81. Further, a contact plate 82 is pressed against the cylindrical electrode 80, and when the cylindrical electrode 80 rotates, the contact plate is pressed against the outer periphery of the cylindrical electrode 80 and slidingly contacts. The blade 82 removes the ink pigment 61 adhered to the surface of the cylindrical electrode 80.
- the waste liquid (contaminated cleaning liquid) is supplied to the input layer a at the center.
- the ink pigment adheres to the cylindrical electrode 80 connected to the ground 8.
- the ink pigment 61 attached to the cylindrical electrode 80 is removed by the removal blade 82, and the removed ink pigment 61 is stored in the lower part of the container 2.
- the ink pigment 61 collected in the lower part of the container 2 can be taken out of the container 2 periodically.However, in some cases, the ink pigment 61 is dropped into the water storage tank portion 9A of the separated water 9. The ink pigment 61 may be discarded together with the water.
- FIGS. 17 (a) and 17 (b) show a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press according to an eighth embodiment of the present invention.
- Fig. 17 (a) is a schematic cross-sectional view of the waste liquid storage container viewed from the side
- Fig. 17 (b) is a cross-sectional view taken along the line D-D in Fig. 17 (a). is there.
- the same reference numerals as those in the above-described drawings indicate the same components, and a description thereof will be partially omitted.
- the rotating disk type is used as the ground electrode plate in the first embodiment. That is, a disc-shaped ground electrode plate 83 is supported by the rotating shaft 85 of the motor 86 on the waste liquid charging layer a in the container 2. An insulator 84 is adhered to the opposite surface of the ground electrode plate 83 so that the ink pigment 61 adheres to only one surface of the ground electrode plate 83.
- a wiping blade 87 is provided for wiping off the adhering ink pigment 61, and is pressed against the adhering surface.
- the ink pigment 61 adhered to the plate 83 is dropped off from the electrode plate 83 by the blade 87 when the electrode plate 83 rotates.
- the waste liquid regenerating apparatus for a printing press as the eighth embodiment of the present invention is configured as described above, the ink pigment 61 attached to the ground electrode plate 83 is rotated by the rotation of the electrode plate 83.
- the ink pigment 61 which has been dropped off from the electrode plate 83 by the plate 87 and has been dropped off, accumulates in the lower portion of the container 2, and may be discharged periodically.
- FIG. 18 is a diagram showing a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press according to a ninth embodiment of the present invention. Is a horizontal cross-sectional view [a cross-sectional view taken along the line E-E of FIG. 18 (b)], and FIG. 18 (b) is a schematic cross-sectional view of the waste liquid storage container viewed from the side.
- the same reference numerals as those in the above-mentioned drawings indicate the same components, and a description thereof will be partially omitted.
- the apparatus of this embodiment employs a metal sheet 95 as a ground electrode and arranges the metal sheet 95 in an endless manner. It is.
- the endlessly configured metal sheet 95 is provided while being held by the pair of rotating holes 96, 96.
- One rotating roll 96 is driven to rotate by a motor 98, and through the endless metal sheet 95 is driven by the one rotating roll 96.
- the metal sheet 95 is used as a ground electrode, and the ink pigment 61 is adhered to the surface of the metal sheet 95.
- a stripping plate 97 is pressed against the surface of the metal sheet 95, and the ink pigment 61 attached to the surface of the metal sheet 95 is stripped off by the stripping blade 97. It is getting to be.
- the waste liquid regenerating apparatus for a printing press is configured as described above, when the ink pigment 61 adheres to the surface of the metal sheet 95 serving as the ground electrode, the metal sheet The wiper blade 97 pressed against the surface of 95 wipes off the ink pigment 61 adhered to the surface of the metal sheet 95.
- the ink pigment removed in this way accumulates in the lower part of the container 2, and may be periodically disposed of outside.
- FIG. 19 is a schematic sectional view showing a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press as a tenth embodiment of the present invention. is there.
- the same reference numerals as those in the above-mentioned figures indicate the same parts, and a description thereof will be partially omitted.
- the electrodes are configured so that a counter-electric field is unlikely to occur. That is, as shown in FIG. 19, in the device of the present embodiment, a conductive protrusion or a mesh-like metal is used for the ground electrode 88, and the + charge of the attached ink pigment is The feature is that it is easy to flow through and has a shape that is less susceptible to the adverse electric field.
- an ultrasonic vibration generator 89 for ultrasonically vibrating the ground electrode 88 and re-dissolving the attached pigment in the cleaning liquid 62 in the liquid layer of the container 2 is provided.
- the ground electrode 88 is hardly affected by the counter electric field, and the adhered ink pigment 6 Since 1 does not have to be dissolved in the liquid layer of the container 2, it can be used without maintenance for a long time (according to experiments).
- the ground electrode 88 was ultrasonically vibrated by the ultrasonic vibration generator 89, and the adhered ink pigment 6 1 Is re-dissolved in the washing solution 62 in the liquid layer of the container 2, and then the ink pigment 61 is discarded together with the washing solution 62.
- FIG. 20 shows a waste liquid regenerating apparatus and a waste liquid regenerating method for a printing press according to the eleventh embodiment of the present invention, of which FIG. 20 is a schematic cross-sectional view of the waste liquid storage container viewed from the side. 1 is a schematic diagram for explaining the principle of waste liquid regeneration, and FIGS. 22 to 24 are schematic sectional views showing the waste liquid regeneration process.
- the waste liquid tank 180, the regenerating tank 1 75, the water recovery water tank 190, the regenerated liquid tank 170, the recovered water tank 1991 and the filtration tank 201 are integrally provided in the outer case 141.
- the waste liquid tank (Room 1) 180, the regeneration tank (Room 2) 175, and the water tank for water recovery (Room 3) 190 are formed as a single container 145. It is provided at the upper center in the outer case 141. A space surrounded by vertical insulating walls 102 and 119 is provided in the upper part of the container 144, and two metal electrode plates 130a and 130b are provided in this space. Are installed vertically in a horizontal or substantially horizontal direction.
- the space defined by the insulating walls 102 and 119 and the lower metal electrode plate 130a is the regeneration tank 175, and the space outside the space is the waste liquid tank 180. .
- a waste liquid introduction pipe 142 for introducing the waste liquid 111 into the waste liquid tank 180.
- the bottom of the container 145 is formed in a funnel shape, and the space surrounded by the conical surface of the funnel is a water tank 190 for water recovery.
- the metal electrode plates 130a and 130b are connected to a high-voltage power supply (not shown) to which a voltage is applied. A potential difference is provided between the two metal electrode plates 13a and 13Ob, and the metal electrode plate 13b farther from the water recovery tank 19 A voltage higher than 30 a is applied.
- a ground electrode 18 is connected to the water tank 190 for water recovery so as to supply electricity to the reclaimed water 109 in the water tank 190.
- the cleaning solution 162 is insulative while the water 109 is conductive.
- the water in the water tank 190 connected to the water tank 190 serves as a ground, and the metal electrode plates 130a and 130b and the water in the water tank 190 for water recovery An electric field is generated between the two.
- electrophoresis of the ink pigment 188 in the washing liquid 162 and electrostatic aggregation of the water 109 started, and the water 109 and the ink pigment 188 moved and separated separately. Go on.
- the water 109 and the ink pigment 188 are completely separated from the cleaning solution 162, and the water 1 09 and the ink pigment 188 are completely separated from each other.
- the water 109 aggregates in a group and sediments toward the water recovery tank 190 by gravity.
- the positively charged ink pigment 188 is attracted to the water 109 in the water recovery water tank 190, which is a single pole, and aggregates in the form of a film near the interface of the water 109.
- the regeneration tank is stored in 175.
- a regeneration liquid tank 170 is provided adjacent to the side of the regeneration tank 175, and the regeneration tank 170 and the regeneration tank 175 are regenerated. They communicate with each other via the liquid recovery pipes 17 2.
- the liquid level position of the regeneration tank 1 75 rises by the amount of the waste liquid 1 1 1 supplied into the waste liquid tank 1 800.
- the overflowing clean cleaning solution 16 2 is collected in the regenerating solution tank 170.
- a recovered water tank 1991 is provided below the water recovery water tank 190.
- the water tank 190 and the recovered water tank 191 are in communication with each other via a recovery pipe 193.
- the recovery pipe 1993 is provided with an open / close valve 1995.
- This open / close valve 1995 detects two upper and lower water interface detection sensors 2 1 1 and 2 1 2 provided in the container 1 45. Operates based on signals. That is, when the upper water interface detection sensor 211 detects the interface of the regenerated water 109, the on-off valve 195 opens, and when the lower water interface detection sensor 212 detects the interface of the regenerated water 109, On-off valve 1 95 closes. As a result, the interface of the reclaimed water 109 is maintained between the water interface detection sensors 211 and 212, and the interface between the water interface detection sensors 211 and 212 is maintained.
- the area is a waste liquid tank 180 and a water recovery tank 1
- a filtration tank 201 is provided directly below the water tank 190 for water recovery.
- An on-off valve 192 is provided between the bottom end of the water tank 190 and the filtration tank 201.
- the on-off valve 192 is used to open and close the water tank 190 and is driven to be opened and closed by an on-off drive motor 194, and is normally closed.
- a filtration filter 200 is provided horizontally or substantially horizontally.
- a pipe 222 is connected to the bottom of the regenerating liquid tank 170, and an opening / closing valve 227 is provided at an inlet of the pipe 222.
- Bottom of recovered water tank 1 9 1 Is connected to a pipe 222, and an on-off valve 222 is provided at the inlet of the pipe 222.
- a pipe 220 is connected to a lower portion of the filtration tank 201, and an opening / closing valve 221 is interposed at an inlet of the pipe 220.
- Each on-off valve 2 27, 2 22 2, 2 1 is always closed, but the regenerated liquid 16 2, regenerated water 1 0 9, Opened when discharging waste liquid 1 1 1.
- On-off valves 222, 225 are interposed in the vicinity.
- the on-off valve 2 25 is for returning the regenerated liquid 16 2 and water 109 to the waste liquid tank 180
- the on-off valve 2 28 is a blanket of the regenerated liquid 16 2 and water 109. It is for sending to the cleaning equipment.
- the pipes 220, 222, 226 function as return flow paths for returning the regenerated liquid 162, the regenerated water 109, and the waste liquid 111 to the waste liquid tank 180.
- each tank is also provided with a liquid level detection sensor to prevent overflow and level reduction. Can be prevented. That is, a waste liquid level sensor 210 detecting the upper surface of the waste liquid 111 is provided in the waste liquid tank 180, and the upper surface of the regenerated liquid 162 is detected in the regeneration tank 175. A liquid level detection sensor 213 is provided, and a liquid level detection sensor 214 for detecting the upper surface of the recovered water 109 is provided in the recovered water tank 191.
- a waste liquid regenerating process by the waste liquid regenerating apparatus of the present embodiment will be described. When the waste liquid is regenerated according to the principle shown in Fig.
- the separated regenerated liquid 16 and water 109 are separated into tanks 17 with the passage of time from the state shown in Fig. 20 at the start of the regeneration. 0, 191, and at the same time, the ink pigment film 188 becomes thicker. Then, after a predetermined time, shown in FIG. As in the state, the ink pigment film 1888 rises to near the applied electrode 130a.
- the ink pigment film 188 rises further, the ink pigment film 188 comes into contact with the applied electrode 130a, which may cause a short circuit. For example, after the end of the daily work load (or After a certain period of time), it is necessary to stop the regeneration and discard the ink pigment 188.
- the regenerated liquid 16 that was regenerated and stored in the regenerated liquid tank 170 was collected in the water tank 191, and the on-off valves 2 27, 2 22 and open / close valve 2 28 are opened and sent to a blanket cleaning device (not shown) to be used for cleaning the planket. After that, it is collected again as waste liquid 111 and sent to the waste liquid tank 180 for recycling.
- a blanket cleaning device not shown
- either the regenerating solution 162 or the water 109 may be used alone. In that case, only the necessary valves need to be opened.
- Disposal of the above-mentioned ink pigment 188 can be performed as follows. In other words, when the ink pigment 188 is separated to the state shown in FIG. 22, the ink pigment 188 is recovered in the filtration tank 201. By opening the on-off valve 192 provided in the lower part of the water tank 190, the water 109 in the water tank 190 and the ink pigment film 188 separated on the surface of the water 109 are formed. , The waste liquid 1 1 1 in the waste liquid tank 180 and the waste liquid 1 1 1 and the regenerated liquid 1 62 in the regeneration tank 1 75 and the filtration tank 2 0 1 provided below the 1S water tank 190 are dropped. .
- the ink material 1 88 that has fallen into the filtration tank 201 has the 0 0, other water 1 09, waste liquid 1 1 1,
- the regenerating solution 16 2 is stored in the lower part of the filtration tank 201.
- the waste liquid tank 180, the regenerating tank 175, and the water tank 190 become empty.
- the regenerating liquid tank 170 stores the regenerating liquid 162
- the water tank 191 also stores water 109.
- the fallen water 109, waste liquid 111, and regenerated liquid 162 are stored as turbid waste liquid 111, and this waste liquid 111 is regenerated again.
- the ink 188 collected in the filter 200 is used up to a predetermined filter collecting capacity while performing similar collection several times, and then is taken out and discarded to form a new filter. Exchange.
- the waste liquid regenerating device is restarted from the state of FIG. 24 as follows.
- the regenerated tank 1 ⁇ 5 and the waste liquid tank 180 are supplied with the regenerated liquid 162 stored in the regenerated liquid tank 110 and the water 9 stored in the water tank 191, respectively. Pay.
- supply is performed by opening the on-off valves 222, 227 of the tanks 170, 191 and the on-off valves 225 of the piping (supply pipe) 226.
- the supply of water 109 to the waste liquid 111 and the regeneration tanks 180, 175 is performed until the upper surface of the water 109 comes between the water interface detection sensors 211, 212.
- the supply of the liquid 162 is performed until the liquid can be applied to the electrodes (the state where the applied electrodes 13a and 13Ob are accumulated). In this state, the inside of the regeneration tank 175 is not dirty because the inside of the regeneration tank 175 is only clean water 109 and the regeneration solution 162.
- the waste liquid 111 stored in the filtration tank 201 is regenerated.
- the waste liquid 111 is supplied in this way, at the same time, the waste liquid 111 is separated into an ink pigment 188, a regenerating liquid 1622, and water 109, and is regenerated by the above-described action and process. You. When all of the waste liquid in the filtration tank 201 is supplied, the waste liquid after the blanket cleaning is supplied and regenerated as before.
- the washing waste liquid 111 is separated into a regenerating liquid 162, water 109, and an ink pigment 188, and the ink pigment 188 is a filter 200.
- the water and the regenerated solution are reused.
- the ink pigment 188, the insulating cleaning liquid 162, and the conductive water can be used without providing a ground electrode inside the container while utilizing the conductivity of water.
- these three components can be separated with a single device, and such separation can be performed efficiently in a relatively short time. Further, the recovery and removal of the ink pigment 188 and the reuse of the water 109 and the regenerating solution 162 can be performed easily and smoothly, greatly improving the practicality.
- FIG. 25 (a) and FIG. 25 (b) show a wastewater reclaiming device for a printing press according to a 12th embodiment of the present invention. It is a figure which shows a water tank, FIG.25 (a) is its top view, FIG.25 (b) is the schematic cross section seen from the side direction.
- This embodiment is characterized by a water tank 90 for water recovery, and the other parts are configured in the same manner as the eleventh embodiment.
- the most important point in the present invention is that the separated ink pigment 188 is configured to be discarded outside.
- the ink pigment film 188 separated on the surface of the water 109 in the water tank 190 does not adhere to the inner surface of the water tank 190 and falls smoothly and neatly . Therefore, in this embodiment, the water Vessel 190 was configured as follows.
- the water tank 190 for water recovery is formed in a funnel shape, and an antifouling treatment 1 16 is applied to the inner surface of the water tank body 115.
- This prevention treatment may be performed by resin processing such as PTFE, for example, or by a method using tiles, ceramics, or the like.
- the ink pigment film 188 separated on the surface of water in the water tank 190 has a lower end of the water tank 190 together with the water 109 and the like.
- the water is smoothly discharged from the drain port 18 9. Therefore, the separated ink pigment 188 can be reliably discarded to the outside.
- the metal electrode plates 130a and 130b are configured so that the cleaning liquid 162 can flow, the cleaning liquid is not applied when the voltage is not applied.
- the ink pigment 188 mixed with 162 can also pass through the metal electrode plates 130a and 130b.
- the metal electrode plates 130a and 130b become positive electrodes, so that the positively charged ink pigments 188 become metal electrode plates 130a and 130b. It becomes difficult to pass through.
- the ink pigment 188 since a voltage higher than that of the lower metal electrode plate 130a is applied to the upper metal electrode plate 130b, the ink pigment 188 temporarily passes through the metal electrode plate 130a.
- the ink pigment 1888 is electrophoresed on the metal electrode plate 130b by the electric field between the metal electrode plate 130b and the metal electrode plate 130a. It is also difficult for 8 to pass through the metal electrode plate 130b and flow into the upper portion of the regeneration tank 1755.
- the metal electrode plates 130a and 130b function as filters that prevent the ink pigment 18S from flowing into the regeneration tank 1775, particularly the upper portion of the regeneration tank 175, together with the cleaning solution 162.
- the metal electrode plate 1 As described above, since the two metal electrode plates 130a and 130b function as double filters, according to the waste liquid regenerating apparatus of the eleventh embodiment, the metal electrode plate 1 The inflow of the pink pigment 188 into the regeneration tank 175 defined by 30a is suppressed, and the inflow to the upper part of the regeneration tank 175 defined by the metal electrode plate 130b is suppressed.
- the high-purity cleaning solution 164 can be recovered in the regeneration solution tank 170.
- the ink pigment 188 passes through the metal electrode plates 130a and 130b, flows into the regeneration tank 175, and mixes into the cleaning solution 164 collected in the regeneration solution tank 170. There is a possibility that it will be.
- the washing liquid 1 64 in the waste liquid tank 180 still contains a water recovery tank 1 as shown by X12 in Fig. 21.
- An ink pigment 188 that has not been electrostatically agglomerated is floating at the interface of water 109 in 90.
- the ink pigment 188 suspended in the cleaning liquid 164 is pushed out into the regeneration tank 175 together with the cleaning liquid 164 by the flow force of the waste liquid 111 supplied later. is there.
- the waste liquid regenerating apparatus for a printing press employs a waste liquid supply method as described below so that the regenerating processing time can be reduced while the number of metal electrode plates and the applied voltage remain unchanged. ing.
- FIG. 26 is a diagram schematically showing a cross section of the waste liquid regenerating device of the printing press according to the present embodiment as viewed from the side, together with a waste liquid supply system and a control system.
- the waste liquid regenerating device 240 of the printing press according to the present embodiment is the same as the waste liquid regenerating device according to the eleventh embodiment described with reference to FIG. 21 with respect to the basic configuration including the principle of waste liquid regeneration.
- common portions are denoted by the same reference numerals.
- the waste liquid supply device 3400 supplies waste liquid 1 1 1 to the waste liquid regenerating device 3 4 0 .
- the waste liquid collection tank 2 3 0 stores the waste liquid 1 1 1 collected from the printing press, and the waste liquid collection tank 2 3 It consists of a pump 2 32 that pumps the waste liquid 1 1 1 to the waste liquid inlet pipe 1 4 2 of the waste liquid regeneration device 2 4 0 from 0 and a control device 2 3 4 that controls the operation of the pump 2 32 .
- the operation method (waste liquid supply method) of the pump 2 32 by the control device 2 3 4 includes a continuous supply method in which the waste liquid 1 1 1 is continuously supplied at a constant speed, and a supply and stop of the waste liquid 1 1 1 alternately. There is an intermittent supply method that repeats.
- the operation of the pump 232 is based on an intermittent supply system.
- the switching switch 236 connected to the force control device 234 controls the continuous supply system and the intermittent supply system. It can be switched arbitrarily.
- FIG. 28 compares the intermittent supply method and the continuous supply method with the concentration of the ink pigment contained in the regenerating cleaning liquid 162 collected in the regenerating liquid tank 1775.
- the waste liquid 11 is supplied at a relatively low constant speed V0 as shown by the dashed line in FIG.
- the intermittent supply method shown by the solid line in Fig. 28 as shown by the solid line in Fig. 27, after supplying the waste liquid 1 1 at a relatively high speed V 1 for a fixed time T 1 and then supplying the waste liquid 1 1 for a fixed time T 2 and the waste liquid 1 1
- the comparison is made for the case where the supply of 1 is stopped and the same amount of waste liquid is treated in both systems as a whole.
- the supply speed V 0 of the waste liquid 111 in the continuous supply system is also changed to the supply speed VI, the supply time T l, and the stop time of the waste liquid 111 in the intermittent supply system.
- ⁇ 2 can also be arbitrarily adjusted from the outside so that the optimal value can be set based on the experimental results.
- the intermittent supply method can reduce the concentration of the ink pigment contained in the regenerating cleaning liquid 16 2 lower than the continuous supply method. It is possible. This is because, in the case of the continuous supply method, the cleaning liquid 16 in the waste liquid tank 180 is always turbid by the ink pigment 188, whereas in the case of the intermittent supply method, the waste liquid 1 1 When the supply of (1) is stopped, the ink pigment (188) in the waste liquid tank (180) aggregates at the interface of the reclaimed water (109) by electrophoresis due to the action of an electric field, and the cleaning liquid (160) in the waste liquid tank (180) Due to the progressive increase in purity of 2.
- the waste pigment 1188 is supplied slowly and slowly so that the ink pigment 1888 is not pushed out of the metal electrode plates 130a, 130b into the regeneration tank 1775.
- the ink 188 diffuses into the waste liquid tank 180 by the supply of the waste liquid 111, and the purity of the washing liquid 162 in the waste liquid tank 180 becomes low.
- Waste liquid 1 1 1 can be supplied at a high supply rate. Therefore, according to the intermittent supply method, a higher processing capacity can be obtained as compared with the continuous supply method as a whole, and the regeneration processing time can be shortened while maintaining the purity of the regeneration cleaning solution 162.
- the waste liquid supply device 340 can select not only the intermittent supply method with the above advantages but also the continuous supply method is that it precipitates in the waste liquid recovery tank 230. This is because the treatment of water 109 was considered.
- the waste liquid 1 1 1 1 is a mixture of the ink pigment 1 8 8, water 1 0 9, and the washing liquid 1 6 2, but due to the difference in specific gravity, the waste liquid 1 1 The water 109 in 1 and the washing solution 162 are separated vertically.
- the waste liquid mainly containing water is supplied from the waste liquid recovery tank 230, and in such a case, even if the waste liquid 111 is continuously supplied, the cleaning liquid in the waste liquid tank 180 is supplied.
- the purity of 16 2 does not decrease, and even if the waste liquid 1 1 1 is supplied at a high supply rate, the ink material 1 8 8 and the cleaning liquid 1 6 2 together with the cleaning liquid 1 6 2 Is unlikely to flow into the regeneration tank 175 through
- the purity of the regenerating washing liquid 162 can be maintained even in the continuous supply method, so that the waste liquid 111 is supplied by the intermittent supply method. It is not necessary to supply the waste liquid 111 by using a continuous supply method and increasing the supply rate, and the regeneration processing time can be reduced as compared with the supply using the intermittent supply method. Therefore, in the case of the waste liquid 1 1 1 mainly consisting of the cleaning liquid 16 2 mixed with the ink pigment 18 8, the intermittent supply method is used as described above, while the case of the waste liquid 1 1 1 mainly containing water 109.
- the waste liquid regenerating apparatus of the present embodiment employs the following configuration as a further contrivance for the waste liquid regenerating apparatus of the first embodiment.
- the position of the upper water interface detection sensor 211 is The thickness is set to a certain distance from the metal electrode plate 130a in consideration of the thickness of the ink face 188.
- the ink pigment 188 enters together with the cleaning liquid 16 2. Therefore, in the present embodiment, as a measure to prevent the ink pigment 188 from remaining, the installation position of the lower water interface detection sensor 221 is changed to the weight of the funnel formed at the bottom of the container 145. It is set above the surface. This is a device for making it difficult for the film of the ink pigment 188 agglomerated at the interface of the reclaimed water 109 to adhere to the weight surface of the funnel. Further, a shower nozzle 196 is attached to a side wall around the waste liquid tank 180. The shower nozzle 196 sprays a shower along the wall surface of the waste liquid tank 180 toward the weight surface of the funnel, and the ink pigment 18 adhered to the weight surface of the funnel by the shower. 8 is forcibly washed away.
- FIG. 29 is a diagram schematically showing a cross section of a waste liquid regenerating apparatus for a printing press according to a fourteenth embodiment of the present invention, as viewed from the side, together with a waste liquid supply system and a control system.
- the waste liquid regenerating device 240 'of the printing press according to the present embodiment is the same as that of the thirteenth embodiment in terms of the configuration of the waste liquid supplying device 340, particularly the control system thereof, and other configurations. . Therefore, in the figure, parts common to the thirteenth embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the waste liquid supply device 240 includes a waste liquid recovery tank 230, a pump 230, a control device 234 ', and two sensors 236, 237 force. .
- the control device 2 3 4 ′ is a control device according to the first embodiment.
- the continuous liquid supply method and the intermittent supply method can be switched as the waste liquid supply method of the pump 232, and this switching can be performed automatically. Further, the control device 234 'can automatically set the stop time T2 (see Fig. 2) of the waste liquid supply in the intermittent supply method.
- the signal from the sensor 237 provided at the outlet of the waste liquid recovery tank 230 is input to 3 4 ′.
- the sensor 2 37 consists of a light-emitting Z light-receiving element 2 37 a and a reflector 2 37 b, and detects the state of light transmission in the waste liquid 1 1 1 discharged from the waste liquid collection tank 230.
- the element 237a can detect the reflected light from the reflection plate 237b, whereas the cleaning liquid 1 mixed with the ink pigment 188
- the waste liquid 112 mainly consists of the waste liquid 111
- the reflected light cannot be detected because the waste liquid 111 is almost black.
- the control device 234 'switches the waste liquid supply method according to the on / off of the signal from the sensor 237, and operates the pump 232 by the intermittent supply method when the signal is the off signal, and outputs the At times, the pump 232 is operated by a continuous supply system.
- the controller 2 34 ′ receives a signal from the sensor 2 36 provided in the regenerating liquid recovery pipe 17 2. Is entered.
- the sensor 2 36 includes a light-emitting Z light-receiving element 2 36 a and a reflector 2 36 b, and the element 2 36 a and the reflector 2 36 b are opposite walls of the regenerating solution collection pipe 1 7 2 It is installed in.
- the sensor 2336 detects the intensity of the reflected light from the reflecting plate 2336b, which is received by the element 2336a, that is, the transmittance of the regenerating cleaning solution 162 flowing in the regenerating solution collecting pipe 172. To the control device 2 3 4 ′.
- the control device 2 3 4 ′ compares the detected transmittance of the regenerated cleaning solution 16 2 with a calibration curve to determine the concentration of the ink pigment 1 88 in the regenerated cleaning solution 16 2.
- This calibration curve is obtained by experiments on the relationship between the transmittance and the ink density.
- the controller 23 ′ compares the obtained ink pigment concentration with the upper limit value of the predetermined regulation range, and when the ink pigment concentration exceeds the upper limit value, sets the stop time T 2 according to the difference. I try to increase it. As the stop time T2 increases, the ink pigment 188 in the waste liquid tank 180 accumulates at the reclaimed water interface by that much, so that the ink pigment 188 reacts with the restart of the waste liquid supply.
- the flow into the regenerating tank 175 can be suppressed, and the concentration of the ink pigment in the regenerating cleaning liquid 162 can be reduced.
- the ink pigment concentration If it is, the current stop time T2 is maintained. In this way, by feeding back the ink pigment concentration of the regenerating cleaning solution 162 to the waste liquid supply stop time ⁇ 2, it is possible to always maintain the purity of the regenerating cleaning solution 162.
- the present invention is not limited to such embodiments, and can be variously modified and implemented without departing from the gist of the present invention.
- a larger number of metal electrode plates 30 may be provided in the container 2.
- the metal electrode plate 30 is not limited to a wire mesh shape as long as the waste liquid can flow therethrough.
- the switching between the intermittent supply method and the continuous supply method is made possible.
- the pump 232 may always be operated in the intermittent supply method.
- the regeneration processing time can be shortened while maintaining the purity of the regenerating cleaning solution as compared with the case of using the continuous supply method at all times.
- the force S for performing the automatic switching control between the intermittent supply method and the continuous supply method and the feed pack control for stopping the time ⁇ 2 in the intermittent supply method is used. Only control may be performed. Further, the control target of the feedback control is not limited to the waste liquid supply stop time ⁇ 2, and the waste liquid supply supply speed V1 and the supply time ⁇ 1 may be controlled by the feedback control, or a plurality of these may be controlled. May be targeted.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Ink Jet (AREA)
- Electrostatic Separation (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03710437A EP1586540A4 (en) | 2002-12-27 | 2003-03-19 | LIQUID RESIDUE REGENERATOR OF PRINTING MACHINE AND METHOD FOR REGENERATING LIQUID RESIDUE |
US10/537,589 US7472651B2 (en) | 2002-12-27 | 2003-03-19 | Waste liquid regenerator of printing machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-380374 | 2002-12-27 | ||
JP2002380374A JP4233866B2 (ja) | 2002-12-27 | 2002-12-27 | 印刷機の廃液再生装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004060816A1 true WO2004060816A1 (ja) | 2004-07-22 |
Family
ID=32708434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003359 WO2004060816A1 (ja) | 2002-12-27 | 2003-03-19 | 印刷機の廃液再生装置及び廃液再生方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7472651B2 (ja) |
EP (1) | EP1586540A4 (ja) |
JP (1) | JP4233866B2 (ja) |
WO (1) | WO2004060816A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4843265B2 (ja) * | 2005-06-15 | 2011-12-21 | 三菱重工印刷紙工機械株式会社 | 廃液再生装置 |
US20070012208A1 (en) * | 2005-07-13 | 2007-01-18 | Byungwoo Cho | Offset printing system |
JP4480166B2 (ja) * | 2005-08-11 | 2010-06-16 | キヤノン株式会社 | 液体塗布装置およびインクジェット記録装置 |
US8538317B2 (en) * | 2008-11-07 | 2013-09-17 | Kabushiki Kaisha Toshiba | Image elimination apparatus, image eliminating method and image forming apparatus |
CN103466760B (zh) * | 2013-09-27 | 2015-12-23 | 上海原青环保工程有限公司 | 电磁式泥水分离塔及电磁式泥水分离方法 |
WO2018006141A1 (pt) * | 2016-07-04 | 2018-01-11 | Adriano Duvoisin Charles | Sistema e método para a energização eletromagnética de conteúdos envasados e equipamento correspondente |
CN111359962B (zh) * | 2020-03-27 | 2022-03-18 | 苏州无为环境科技有限公司 | 一种电絮凝极板自动清洗和更换系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1308470A (en) * | 1969-08-25 | 1973-02-21 | North American Rockwell | Method and apparatus for removing contaminants from liquids |
JPS5310440A (en) | 1976-07-15 | 1978-01-30 | Ricoh Co Ltd | Liquid cleaning system |
JP2001315312A (ja) * | 2000-05-12 | 2001-11-13 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置 |
JP2002079259A (ja) * | 2000-06-20 | 2002-03-19 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置及び廃液再生方法 |
JP2002292834A (ja) * | 2001-04-03 | 2002-10-09 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置および廃液再生方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1774778A (en) * | 1926-11-26 | 1930-09-02 | Wood Newspaper Mach Corp | Inking system for printing presses |
US3926114A (en) * | 1967-06-30 | 1975-12-16 | Walter E S Matuschke | Rotary lithographic printing press with ink and dampening fluid separator |
US4288303A (en) | 1978-10-20 | 1981-09-08 | Environmental Sciences Associates, Inc. | Electrochemical processing system |
US4527479A (en) * | 1981-07-31 | 1985-07-09 | Dahlgren Harold P | Ink removal, circulating and distributing system |
DE3580908D1 (de) * | 1984-12-26 | 1991-01-24 | Dainippon Printing Co Ltd | Tiefdrucksystem. |
JPS6430691A (en) * | 1987-07-27 | 1989-02-01 | Sanshu Kaken Kogyo Kk | Method and device for water treatment |
JPH0436236Y2 (ja) | 1987-08-14 | 1992-08-26 | ||
RU2152359C1 (ru) | 1999-01-20 | 2000-07-10 | Товарищество с ограниченной ответственностью "Имкомтех" | Устройство для очистки и обеззараживания воды высоковольтными электрическими разрядами |
US6267871B1 (en) * | 1999-02-10 | 2001-07-31 | Edward C. Weakly | Apparatus and process for recovering metals from aqueous solutions |
JP3592997B2 (ja) | 2000-05-19 | 2004-11-24 | 三菱重工業株式会社 | 印刷機の廃液再生装置 |
JP2002023583A (ja) | 2000-07-10 | 2002-01-23 | Mitsubishi Heavy Ind Ltd | 液体トナーの再生装置及び再生方法 |
-
2002
- 2002-12-27 JP JP2002380374A patent/JP4233866B2/ja not_active Expired - Fee Related
-
2003
- 2003-03-19 EP EP03710437A patent/EP1586540A4/en not_active Withdrawn
- 2003-03-19 WO PCT/JP2003/003359 patent/WO2004060816A1/ja active Application Filing
- 2003-03-19 US US10/537,589 patent/US7472651B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1308470A (en) * | 1969-08-25 | 1973-02-21 | North American Rockwell | Method and apparatus for removing contaminants from liquids |
JPS5310440A (en) | 1976-07-15 | 1978-01-30 | Ricoh Co Ltd | Liquid cleaning system |
JP2001315312A (ja) * | 2000-05-12 | 2001-11-13 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置 |
JP2002079259A (ja) * | 2000-06-20 | 2002-03-19 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置及び廃液再生方法 |
JP2002292834A (ja) * | 2001-04-03 | 2002-10-09 | Mitsubishi Heavy Ind Ltd | 印刷機の廃液再生装置および廃液再生方法 |
Non-Patent Citations (2)
Title |
---|
KUROSHIMA ET AL., A COLLECTION OF JAPAN HARDCOPY '96 THESES, 1996, pages 153 |
See also references of EP1586540A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1586540A1 (en) | 2005-10-19 |
US20060144268A1 (en) | 2006-07-06 |
US7472651B2 (en) | 2009-01-06 |
JP2004209350A (ja) | 2004-07-29 |
JP4233866B2 (ja) | 2009-03-04 |
EP1586540A4 (en) | 2006-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004060816A1 (ja) | 印刷機の廃液再生装置及び廃液再生方法 | |
JP3586630B2 (ja) | 印刷機の廃液再生装置及び廃液再生方法 | |
JP4384884B2 (ja) | キャリア液リサイクル装置 | |
JP3697123B2 (ja) | 印刷機の廃液再生装置 | |
JPH10314796A (ja) | 洗車水リサイクル装置 | |
JP3586656B2 (ja) | 印刷機の廃液再生装置および廃液再生方法 | |
JP3993534B2 (ja) | 印刷機の洗浄廃液再生装置及び再生方法 | |
JP3637262B2 (ja) | 印刷機の廃液再生装置 | |
CN110911307A (zh) | 处理装置、处理系统以及处理方法 | |
JP3702130B2 (ja) | 印刷機の廃液再生装置 | |
JP2015196148A (ja) | 廃液処理装置 | |
JP2003270957A (ja) | キャリア液リサイクル装置 | |
JPH10158874A (ja) | 鋼板の洗浄装置 | |
JP2003181325A (ja) | 廃油の再生装置 | |
JP4195149B2 (ja) | 洗浄用液再生装置 | |
JP3750853B2 (ja) | 電気集じん設備の洗浄システムおよび方法 | |
JP2002018444A (ja) | 廃水処理装置および廃水処理方法 | |
CN110563219B (zh) | 一种基于微电解的高级氧化水处理系统及其处理方法 | |
JP3592997B2 (ja) | 印刷機の廃液再生装置 | |
JP2000325709A (ja) | 放電加工装置用のフィルタの洗浄装置 | |
JPH07207478A (ja) | 導電性被洗浄物の洗浄方法および洗浄装置 | |
JP2016022630A (ja) | 凹版印刷機のワイピング装置 | |
JP3697122B2 (ja) | 印刷機の廃液再生装置 | |
JP4365697B2 (ja) | 印刷機の廃液再生装置及び廃液再生方法 | |
KR101728897B1 (ko) | 여과사 재생 시스템 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003710437 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2006144268 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10537589 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2003710437 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10537589 Country of ref document: US |