CN113546468A - Water-based ink filtering system and filtering method - Google Patents
Water-based ink filtering system and filtering method Download PDFInfo
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- CN113546468A CN113546468A CN202110901471.XA CN202110901471A CN113546468A CN 113546468 A CN113546468 A CN 113546468A CN 202110901471 A CN202110901471 A CN 202110901471A CN 113546468 A CN113546468 A CN 113546468A
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- 238000001914 filtration Methods 0.000 title claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 111
- 239000002775 capsule Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 7
- 239000012498 ultrapure water Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000013049 sediment Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/046—Controlling the filtration by pressure measuring
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a water-based ink filtering system and a filtering method, relates to the technical field of ink manufacturing, and aims to solve the problems of low filtering efficiency and high cost of the existing water-based ink, and the key points of the technical scheme are as follows: the device comprises a filter, a peristaltic pump, a pressure gauge, a feeding pipe, a discharging pipe, a first ink tank and a second ink tank, wherein the filter comprises a filter sac provided with a liquid inlet and a liquid outlet and a filter element in the filter sac; during filtering, the peristaltic pump is arranged on the liquid inlet pipe, and when the filter element is cleaned, the peristaltic pump is arranged on the liquid outlet pipe. The invention adopts the stepping peristaltic pump, the single filter bag and the single filter element, soaks and washes the used filter element in a reverse circulation manner, can stably and reliably filter ink, and improves the stability of the ink quality after filtering.
Description
Technical Field
The invention relates to the technical field of ink manufacturing, in particular to a water-based ink filtering system and a water-based ink filtering method.
Background
The production of water-based ink generally comprises three parts of dissolving and dispersing dye, filtering and canning. The existing filtering system is generally composed of a pneumatic diaphragm pump, 2-5 filter bags and 2-5 levels of filter elements, and is low in filtering efficiency and high in cost. The consumption to the filter core is great among the filtering process, filters the condition that the filter core probably produced the jam after a period of time, leads to the ink of follow-up filtration output can't reach the requirement of settlement, leads to exporting the ink stability of quality relatively poor, influences subsequent printing processing.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a water-based ink filtration system capable of stably and reliably filtering ink and improving the stability of the quality of the filtered ink.
The technical purpose of the invention is realized by the following technical scheme: a water-based ink filtering system comprises a filter, a peristaltic pump, a pressure gauge, a feeding pipe, a discharging pipe, a first ink tank and a second ink tank, wherein the filter comprises a filter sac provided with a liquid inlet and a liquid outlet and a filter element in the filter sac, the liquid inlet is connected with the first ink tank through a liquid inlet pipe, the liquid outlet is connected with the second ink tank through a liquid outlet pipe, and a testing end of the pressure gauge extends into the liquid inlet of the filter sac; during filtering, the peristaltic pump is arranged on the liquid inlet pipe, and when the filter element is cleaned, the peristaltic pump is arranged on the liquid outlet pipe.
The invention preferably: the filter element comprises a base, a top cover and a buckling ring used for fixing the base and the top cover, wherein the inside hollow part and the top part of the base are opened, the top cover covers the opening of the base, a liquid outlet is formed in the middle of the top cover, a liquid inlet and a gas outlet are formed in two sides of the top cover respectively, a first material guide pipe is connected to the inner side of the liquid outlet, a first material guide opening is formed in the side surface of the first material guide pipe, a supporting cover is arranged at the lower end of the first material guide pipe, the filter element is in a circular ring shape and is sleeved on the periphery of the first material guide pipe, and the upper end surface and the lower end surface of the filter element are respectively abutted to the inner side of the top cover and the outer side of the supporting cover.
The invention preferably: the improved base is characterized in that a supporting cylinder is arranged in the middle of the bottom in the base, a supporting cover is connected to the upper end of the supporting cylinder in a threaded mode, a material guide pipe II is connected to the inner portion of the material guide pipe I in a sliding mode, the periphery of the material guide pipe II is provided with a material guide opening II corresponding to the material guide opening I, the lower end of the material guide pipe II penetrates through the supporting cover and stretches into the supporting cylinder, a piston seat capable of being adjusted in a lifting mode is arranged on the supporting cylinder, the upper end of the piston seat is fixedly connected with the material guide pipe II, a spring is elastically pressed between the supporting cover and the upper end face of the piston seat, and a through hole is formed in the periphery of the lower portion of the supporting cylinder.
The invention preferably: the second material guide pipe is connected with a third material guide pipe in a sliding mode, the lower end of the third material guide pipe penetrates through the piston seat and is connected with the base, the third material guide pipe and the piston seat are sealed through a first sealing ring, the upper end of the third material guide pipe is open, a third material guide opening is formed in the peripheral wall, corresponding to the upper portion of the piston seat, of the third material guide pipe, and a filter plug is arranged in the third material guide pipe.
The invention preferably: the lower end of the third material guide pipe penetrates through the base and is in watertight connection with the base through the second sealing ring, the lower end of the third material guide pipe is in threaded connection with the connecting cover, the connecting rod is connected to the middle of the inner side of the connecting cover, the upper end of the connecting rod is provided with the connecting barb, and the connecting barb is inserted into the filter plug.
The invention preferably: the third material guide pipe is axially and rotatably connected with the base in a limiting mode, a support ring is connected to the periphery of one section of the third material guide pipe, which extends into the support cylinder, in a threaded mode, and the support ring is connected with the piston seat through a second spring.
The invention does not solve the technical problems and also provides a water-based ink filtering method, which adopts the filtering system for filtering and comprises the following steps:
step 1: placing the filter element into a filter;
step 2: connecting a feed pipe with a liquid inlet of a filter, putting the feed pipe into a pump head of a peristaltic pump, and putting the feed pipe into ink to be filtered in an ink tank I; connecting the discharge pipe with the liquid outlet, and then placing the discharge pipe into the ink tank II;
and 4, step 4: when the pressure exceeds the pressure set value, the peristaltic pump is closed, and the filter is opened to return the ink in the filter sac to the first ink tank;
and 5: taking out the filter element, and cleaning the filter element;
step 6: after the cleaning is finished, the filter element is installed back into the filter, and the ink is continuously filtered.
The invention preferably: the pressure set value is 1.5-3pa, and the absolute precision of the filter element is 0.45 u.
The invention preferably: in the step 5, when the filter element is cleaned, the taken filter element is soaked in ultrapure water for 3 to 10 minutes, the water is poured out, and the soaking is repeated for 3 to 8 times; and then the filter element is arranged in the filter, a discharge pipe of the filter is placed in a pump head of the peristaltic pump, the peristaltic pump is started, and ultrapure water is input from the discharge pipe to carry out back washing on the filter element.
The invention preferably: during filtering, the rotating speed of the peristaltic pump is controlled at 40-50 r/min; when cleaning, the rotation speed of the peristaltic pump is controlled at 80-120 r/min.
In conclusion, the invention has the following beneficial effects:
the invention adopts a step peristaltic pump, a single filter bag and a single filter element, and soaks and washes the used filter element in a reverse circulation way; the stepping peristaltic pump enables feeding to be more stable, the single filter bag and the single filter element greatly reduce the use cost of the filter element, the filtering effect is equivalent to that of multi-stage filtering, the use efficiency of the filter element can be improved greatly by soaking and reverse circulation washing of the used filter element, waste is reduced, and the capital cost is saved; and through the automatically regulated structure of filter, can stop filtering channel when the filter core blocks up and reaches the setting value to avoid unsatisfied ink of filtering fineness to sneak into, improve filtration system's stability and the quality stability who filters the ink.
Drawings
FIG. 1 is a first schematic view of a water-based ink filtering system according to the present invention, showing a connection structure of a filter element during filtering;
FIG. 2 is a schematic structural diagram of a water-based ink filtering system according to a second embodiment of the present invention, showing a connection structure when the filter element is cleaned;
FIG. 3 is a schematic structural diagram of a filter according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a filter according to another embodiment of the present invention;
fig. 5 is a partial structural view of a filter according to another embodiment of the present invention.
Reference numerals: 51. a filter; 52. a peristaltic pump; 53. a pump head; 54. a first ink tank; 55. a feed pipe; 56. a second ink tank; 57. a discharge pipe; 58. a pressure gauge; 1. a base; 2. a top cover; 3. buckling rings; 4. a filter capsule; 5. a liquid inlet; 6. a liquid outlet; 7. an exhaust port; 8. a filter element; 81. an inner bag opening; 82. an outer cuff; 9. a support cylinder; 10. a support cover; 11. a material guide pipe I; 12. a material guide opening I; 13. a material guide pipe II; 14. a material guide opening II; 15. a piston seat; 16. a first spring; 17. a material guide pipe III; 18. a material guide port III; 19. a first sealing ring; 20. a through hole; 21. a filter plug; 22. a limit convex ring; 23. connecting barbs; 24. a connecting rod; 25. a connecting cover; 26. a rotating base; 27. a second sealing ring; 28. a support ring; 29. a second spring; 30. and a limiting bulge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment discloses a water-based ink filtering system, which is shown in fig. 1 and fig. 2 and comprises a filter 51, a peristaltic pump 52, a pressure gauge 58, a feed pipe 55, a discharge pipe 57, a first ink tank 54, a second ink tank 56 and the like; the filter 51 is a bag solid filter 51, the filter 51 comprises a filter bag 4 and a filter element 8 in the filter bag 4, the filter element 8 is installed in the filter bag 4, and the filter element 8 with the absolute accuracy of 0.45u is selected;
the filter capsule 4 is provided with a liquid inlet 5, a liquid outlet 6 and an exhaust port 7, the liquid inlet 5 is connected with a first ink tank 54 through a liquid inlet pipe, the liquid outlet 6 is connected with a second ink tank 56 through a liquid outlet pipe, and the exhaust port 7 is connected with a proper exhaust pipeline; the testing end of the pressure gauge 58 extends into the liquid inlet 5 of the filter bag 4, and can detect the pressure of the entering position of the printing ink during filtering;
the pump head 53 of the peristaltic pump 52 can be installed with the liquid inlet pipe and the liquid outlet pipe in a matching way, when filtering, the peristaltic pump 52 is installed on the liquid inlet pipe, ink can pass through the filter bag 4 through the operation of the peristaltic pump 52, and the filter element 8 filters the ink; after using a period of time, wash filter core 8, when wasing filter core 8, install peristaltic pump 52 on the drain pipe, drive the clear water through peristaltic pump 52 and carry out the recoil from the inboard of filter core 8, the sediment on filter core 8 inlayer can be got rid of in the relapse of ultrapure water to make filter core 8 obtain cleanly, so can improve the availability factor of filter core 8 by a wide margin, practice thrift the cost.
In order to improve the filtering effect of the filtering system, a second filter 51 can be installed on the discharge pipe 57 during filtering, and the OR reverse osmosis membrane is adopted as the filter element 8 in the second filter 51, so that ions in the ink after the first filtering can be removed during filtering, and the ink system is more stable and easy to store.
The embodiment also discloses a water-based ink filtering method, wherein the filtering system in the embodiment is adopted for filtering, 1 ton of dispersed active ink is prepared, five pump heads 53 are arranged on the stepping peristaltic pump 52, and the bag filter 51, the feeding pipe 55 and the discharging pipe 57 are correspondingly wiped into five groups;
the method comprises the following steps:
step 1: the filter element 8 is put into the filter 51, and the absolute accuracy of the filter element 8 is selected to be 0.45 u;
step 2: connecting a feed pipe 55 with a liquid inlet 5 of a filter 51, placing the feed pipe 55 into a pump head 53 of a peristaltic pump 52, and then placing the feed pipe 55 into ink to be filtered in an ink tank I54; connecting the outlet pipe 57 with the liquid outlet 6, and then placing the outlet pipe 57 into the second ink tank 56;
and 4, step 4: when the pressure exceeds the pressure set value, the peristaltic pump 52 is closed, the filter 51 is opened, and the ink in the filter capsule 4 is poured back to the ink tank I54;
and 5: taking out the filter element 8, and cleaning the filter element 8; the step peristaltic pump 52 is adopted to add the single filter bag 4 and the single filter element 8, soak and reversely circulate the used filter element 8, soak and reversely circulate the filter element 8, and can clear away the sediment blocked on the filter element 8, so that the filter element 8 recovers the filtering effect again, the service efficiency of the filter element 8 is improved greatly, the waste is reduced, and the capital cost is saved;
when the filter element 8 is cleaned, the taken-down filter element 8 is soaked in ultrapure water for 3-10 minutes, water is poured out, and the filter element 8 is repeatedly soaked for 3-8 times, so that sediments on the surface layer of the filter element 8 can be removed; then the filter element 8 is arranged in the filter 51, the discharge pipe 57 of the filter 51 is arranged in the pump head 53 of the peristaltic pump 52, the peristaltic pump 52 is started, the rotating speed of the peristaltic pump 52 is adjusted to be controlled at 80-120r/min, ultrapure water is input from the discharge pipe 57 to repeatedly flush the filter element 8, and the flushing time is 5-10min, so that the sediment at the inner layer of the filter element 8 is removed;
step 6: after the cleaning is completed, the filter element 8 is installed back into the filter 51, and the above steps are repeated to filter the ink until the ink filtering is completed.
The filtering method adopts the stepping peristaltic pump 52 and the single filter bag 4 and the single filter element 8 to stably and reliably filter the ink, the stepping peristaltic pump 52 enables the feeding to be more stable, the single filter bag 4 and the single filter element 8 greatly reduce the use cost of the filter element 8, and the filtering effect is equivalent to that of multi-stage filtering; the blocking condition of the filter element 8 is monitored by detecting the pressure in the filtering process, so that the stability of the filtering process is improved, and the filter element 8 is ensured to fully filter the ink; then the used filter element 8 is soaked and washed in a reverse circulation manner in the filtering process; the used filter element 8 is soaked and reversely and circularly washed, so that the use efficiency of the filter element 8 can be greatly improved, waste is reduced, and the capital cost is saved.
Example two
The embodiment discloses a water-based ink filtering system, which is characterized in that on the basis of the first embodiment, a filter 51 is further improved, so that the filtering stability of the filter 51 is improved; referring to fig. 3 again, the filter capsule 4 of the filter 51 includes a base 1, a top cover 2 and a fastening ring 3, the base 1 is hollow and has an open top, the top cover 2 covers the opening of the base 1, the base 1 is in a capsule shape after being covered, the base is sealed by a sealing element, convex rings are formed on the peripheries of the base 1 and the top cover 2, and the convex rings are fastened and assembled on the peripheries of the base 1 and the top cover 2 by the fastening ring 3;
a liquid outlet 6 is formed in the middle of the top cover 2, a liquid inlet 5 and an exhaust port 7 are formed in two sides of the top cover respectively, a first material guide pipe 11 is connected to the inner side of the liquid outlet 6, a first material guide opening 12 is formed in the side surface of the first material guide pipe, the lower end of the first material guide pipe 11 is supported by a support cover 10, and the upper end surface and the lower end surface of the filter element 8 are respectively abutted against the inner side of the top cover 2 and the outer side of the support cover 10 and are fastened and fixed up and down; this filter core 8 is the ring form, cup joints in the periphery of passage one 11, and the circulation of ink is realized from a guide opening one 12 in the passage one 11 periphery to make the ink only pass through on can following the circumference face of filter core 8, thereby can improve the stability of filtering process greatly, avoid the ink to pass through in the middle of from the outside clearance of filter core 8, thereby can improve the filtration stability of filter core 8.
EXAMPLE III
The embodiment discloses a water washing ink filtering system, on the basis of the second embodiment, referring to fig. 4 and 5, the filter 51 in the above embodiment is further improved;
a supporting cylinder 9 is fixed in the middle of the bottom in the base 1, a supporting cover 10 at the lower part of the filter element 8 is in threaded connection with the upper end of the supporting cylinder 9, a material guide pipe II 13 is connected inside a material guide pipe I11 in a sliding manner, a material guide opening II 14 corresponding to the material guide opening I12 is formed in the periphery of the material guide pipe II 13, and the relative position of the material guide opening I12 and the material guide opening II 14 can be adjusted by sliding the material guide pipe II 13, so that the opening or closing of the material guide opening I12 can be adjusted;
the lower end of the second material guide pipe 13 extends downwards, penetrates through the supporting cover 10 at the lower part and extends into the supporting cylinder 9, a piston seat 15 capable of being adjusted in a lifting mode is arranged on the supporting cylinder 9, a piston structure capable of floating up and down is formed in the supporting cylinder 9 by the piston seat 15, and the upper end of the piston seat 15 is fixedly connected with the second material guide pipe 13, so that the piston seat 15 and the second material guide pipe 13 can be kept to lift synchronously; a spring is elastically pressed between the upper end surface of the piston seat 15 and the support cover 10, the piston seat 15 is maintained at a certain height through the support of the spring, and the lowest position of the piston seat 15 can be limited and blocked through the limiting bulge 30 on the inner peripheral wall; the periphery of the lower part of the supporting cylinder 9 is provided with a through hole 20, so that ink in the space outside the filter element 8 can normally circulate and enter the supporting cylinder 9 to generate certain pressure on the piston seat 15;
the lower part of the piston is acted by the spring and the hydraulic pressure in the filter element 8, the lower part of the piston is acted by the pressure outside the filter element 8, the pressure inside and outside the filter element 8 is gradually increased along with the increase of impurities deposited on the surface of the filter element 8, and the piston of the piston seat 15 can be driven to lift and adjust through pressure difference;
when the filter element 8 is just used, the filter element 8 is relatively smooth, the difference between the internal pressure and the external pressure is small, the pressure outside the filter element 8 can maintain the heights of the piston seat 15 and the material guide pipe II 13 at proper positions, the material guide opening I12 is opposite to the material guide opening II 14, and ink can be output from the material guide pipe I11 to the material outlet; along with the gradual blockage of the filter element 8, the internal and external pressure difference of the filter element 8 is gradually increased, the external pressure gradually moves the piston seat 15 and the material guide pipe II 13 to the upper piston, the compression spring I16 enables the upper and lower pressures of the piston seat 15 to be balanced, the material guide opening I12 and the material guide opening II 14 are mutually offset, the circulation channel between the two is gradually reduced, and at the moment, the ink can still normally circulate; when the blocking degree of the filter element 8 reaches a preset value, ink outside the filter element 8 cannot rapidly pass through the filter element 8, the pressure difference between the inside and the outside is further increased, and therefore the piston seat 15 and the material guide pipe II 13 are pushed to move upwards to a certain value, the material guide opening I12 and the material guide opening II 14 are mutually offset, the channel is closed, and the filtering process is automatically stopped; the pressure gauge 58 in the middle of the filter bag 4 shows that the pressure rise is accelerated rapidly, and the filter is stopped by the indication, so that the medium ink passes through the filter element 8, the filter element 8 which is prevented from being blocked filters the unqualified ink mixed in the medium ink, and the filter stability effect of the ink is improved.
Example four
The embodiment discloses a water washing ink filtering system, on the basis of the third embodiment, referring to fig. 4 and 5, the filter 51 in the above embodiment is further improved;
a third material guide pipe 17 is connected in the second material guide pipe 13 in a sliding manner, the lower end of the third material guide pipe 17 penetrates through the piston seat 15 and is connected with the base 1, the third material guide pipe 17 and the piston seat 15 are sealed through a first sealing ring 19, and the upper end of the third material guide pipe 17 is open and can be used for ink circulation; the third material guide pipe 17 is provided with a third material guide opening 18 corresponding to the peripheral wall of the piston seat 15 close to the upper part, and the third material guide opening 18 can be opened or closed along with the lifting of the piston seat 15, so that the opening and closing of the third material guide pipe 17 are controlled, and the inside and the outside of the filter element 8 can be subjected to pressure relief balance;
when the filter element 8 is in a smooth filtering state, the piston seat 15 is close to the lower position due to the difference between the internal pressure and the external pressure, and the upper material guide opening III 18 of the material guide pipe III 17 can be sealed by the sealing ring I19 in the piston seat 15, so that ink cannot flow from the material guide pipe III 17; when the filter element 8 is blocked to reach a designed limit value, the first material guide opening 12 and the second material guide opening 14 are blocked in a staggered mode, so that the pressure outside the filter element 8 of the filter capsule 4 is obviously increased, at the moment, the piston seat 15 rises to a position exceeding the third material guide opening 18, the third material guide opening 18 opens the lower side position of the supporting cylinder 9, the third material guide pipe 17 is smooth up and down, ink outside the filter element 8 can flow through the third material guide pipe 17, pressure relief is achieved, and dangers that the filter capsule 4 bursts and the like due to overlarge pressure outside the filter capsule 4 are avoided.
In order to keep the fineness of the output ink during pressure relief, a filter plug 21 can be filled in the third material guide pipe 17, and the filter plug 21 can filter the pressure-relieved ink, so that the situation that the unfiltered ink is mixed into finished ink is avoided; the filter plug 21 can be arranged in a detachable structure, the lower end of the material guide pipe III 17 penetrates through the base 1, and the water-tight connection between the material guide pipe III and the base 1 is realized through a sealing ring II 27; there is a connection lid 25 at the lower extreme threaded connection of passage three 17, connects the inboard intermediate junction of lid 25 to have a connecting rod 24, and the upper end of connecting rod 24 sets up connection barb 23, and the upper end of connecting rod 24 inserts in filtering stopper 21 to when needing to be changed filtering stopper 21, can open connection lid 25, extract filtering stopper 21, in order to change filtering stopper 21.
EXAMPLE five
The embodiment discloses a water washing ink filtering system, on the basis of the fourth embodiment, referring to fig. 4 and 5, the filter 51 in the above embodiment is further improved; the third material guide pipe 17 is connected with the base 1 by adopting a rotatable structure, the third material guide pipe 17 is axially limited and sealed by a proper ring groove, a convex ring and a sealing element, and the ink sealing is kept in the process of rotation adjustment; a support ring 28 is connected to the periphery of one section of the material guide pipe III 17 extending into the support cylinder 9 in a threaded manner, the support ring 28 is connected with the piston seat 15 through a spring II 29, and the pressure of one part of the spring I16 is balanced through the spring II 29;
the upper end and the lower end of the second spring 29 are respectively clamped and fixed with the support ring 28 and the piston seat 15, and the second spring 29, the support ring 28 and the piston seat 15 are kept from axially rotating; by rotating the third material guide pipe 17, the thread rotation between the third material guide pipe 17 and the support ring 28 can be generated, the support ring 28 generates axial displacement, and the compression degree of the support ring 28 on the second spring 29 is adjusted; and indirectly adjust the pressure difference between the inside and the outside of the filter element 8 and the compression condition of the first spring 16, and further adjust the height of the piston seat 15 and the second material guide pipe 13 relative to the first material guide pipe 11 and the height of the relative position of the first material guide opening 12 and the second material guide opening 14 in the initial filtering state of the filter element 8, so that the preset value for judging the blockage of the filter element 8 can be adjusted, the adjustment is carried out according to the requirement of the filtering fineness of the ink, and the application range of the filtering system is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The water-based ink filtering system is characterized by comprising a filter (51), a peristaltic pump (52), a pressure gauge (58), a feeding pipe (55), a discharging pipe (57), a first ink tank (54) and a second ink tank (56), wherein the filter (51) comprises a filter capsule (4) provided with a liquid inlet (5) and a liquid outlet (6) and a filter element (8) in the filter capsule (4), the liquid inlet (5) is connected with the first ink tank (54) through a liquid inlet pipe, the liquid outlet (6) is connected with the second ink tank (56) through a liquid outlet pipe, and a testing end of the pressure gauge (58) extends into the liquid inlet (5) of the filter capsule (4); during filtering, the peristaltic pump (52) is arranged on the liquid inlet pipe, and when the filter element (8) is cleaned, the peristaltic pump (52) is arranged on the liquid outlet pipe.
2. The water-based ink filtering system according to claim 1, wherein the filter capsule (4) comprises a base (1), a top cover (2) and a snap ring (3) for fixing the base (1) and the top cover (2), the interior of the base (1) is hollow, the top of the base is open, the top cover (2) covers the opening of the base (1), a liquid outlet (6) is arranged in the middle of the top cover (2), a liquid inlet (5) and an exhaust port (7) are respectively arranged at the two sides, the inner side of the liquid outlet (6) is connected with a first material guide pipe (11), the side surface of the material guide pipe is provided with a first material guide opening (12), the lower end of the first material guide pipe (11) is provided with a support cover (10), the filter element (8) is in a ring shape and is sleeved on the periphery of the first material guide pipe (11), the upper end face and the lower end face of the filter element (8) are respectively pressed against the inner side of the top cover (2) and the outer side of the support cover (10).
3. The water-based ink filtering system according to claim 2, wherein a support cylinder (9) is arranged in the middle of the inner bottom of the base (1), the supporting cover (10) is in threaded connection with the upper end of the supporting cylinder (9), the material guide pipe I (11) is connected with a material guide pipe II (13) in a sliding manner, a second material guide opening (14) corresponding to the first material guide opening (12) is arranged on the periphery of the second material guide pipe (13), the lower end of the second material guide pipe (13) penetrates through the support cover (10) and extends into the support cylinder (9), the supporting cylinder (9) is provided with a piston seat (15) which can be adjusted in a lifting way, the upper end of the piston seat (15) is fixedly connected with the material guide pipe II (13), the upper end face of the piston seat (15) is elastically pressed between the supporting covers (10) to form a spring, and the periphery of the lower part of the supporting cylinder (9) is provided with a through hole (20).
4. The water-based ink filtering system according to claim 3, wherein a third material guiding pipe (17) is slidably connected to the second material guiding pipe (13), the lower end of the third material guiding pipe penetrates through the piston seat (15) and is connected with the base (1), the space between the third material guiding pipe (17) and the piston seat (15) is sealed through a first sealing ring (19), the upper end of the third material guiding pipe (17) is open, a third material guiding opening (18) is formed in the peripheral wall, corresponding to the upper portion of the piston seat (15), of the third material guiding pipe (17), and a filtering plug (21) is arranged in the third material guiding pipe (17).
5. The water-based ink filtering system according to claim 4, wherein the lower end of the material guiding pipe III (17) penetrates through the base (1) and is in watertight connection with the base (1) through a sealing ring II (27), the lower end of the material guiding pipe III (17) is in threaded connection with a connecting cover (25), a connecting rod (24) is connected to the inner side of the connecting cover (25) in the middle, and a connecting barb (23) is arranged at the upper end of the connecting rod (24) and is inserted into the filter plug (21).
6. The water-based ink filtering system according to claim 5, wherein the third material guiding pipe (17) is connected with the base (1) in a rotation-limited manner in the axial direction, a supporting ring (28) is connected to the outer periphery of a section of the third material guiding pipe (17) extending into the supporting cylinder (9) in a threaded manner, and the supporting ring (28) is connected with the piston seat (15) through a second spring (29).
7. A method for filtering an aqueous ink, wherein the filtering is performed by using the filter system according to any one of claims 1 to 6, comprising the steps of:
step 1: placing the filter element (8) in the filter (51);
step 2: connecting a feed pipe (55) with a liquid inlet (5) of a filter (51), placing the feed pipe (55) into a pump head (53) of a peristaltic pump (52), and then placing the feed pipe (55) into ink to be filtered in an ink tank I (54); connecting the discharge pipe (57) with the liquid outlet (6), and then placing the discharge pipe (57) into the second ink tank (56);
step 3, starting the peristaltic pump (52), observing the pressure at one side of the feed inlet in the filter (51), wherein the pressure does not exceed a pressure set value during filtering;
and 4, step 4: when the pressure exceeds the pressure set value, the peristaltic pump (52) is closed, the filter (51) is opened, and the ink in the filter bag (4) is poured back to the ink tank I (54);
and 5: taking out the filter element (8), and cleaning the filter element (8);
step 6: after the cleaning is completed, the filter element (8) is installed back into the filter (51) and the ink is continuously filtered.
8. The method for filtering water-based ink according to claim 7, wherein the pressure set value is 1.5-3pa and the absolute accuracy of the filter element (8) is 0.45 u.
9. The method for filtering the water-based ink according to claim 7, wherein in the step 5, when the filter element (8) is cleaned, the removed filter element (8) is soaked in ultrapure water for 3-10 minutes, the water is poured off, and the soaking is repeated for 3-8 times; then the filter element (8) is arranged in the filter (51), the discharge pipe (57) of the filter (51) is arranged in the pump head (53) of the peristaltic pump (52), the peristaltic pump (52) is started, and ultrapure water is input from the discharge pipe (57) to carry out back flushing on the filter element (8).
10. The method for filtering the water-based ink as claimed in claim 9, wherein the rotation speed of the peristaltic pump (52) is controlled to be 40 to 50 r/min; when cleaning, the rotating speed of the peristaltic pump (52) is controlled at 80-120 r/min.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503509A (en) * | 1968-05-29 | 1970-03-31 | Marvel Eng Co | Filtering assembly |
| CN205127514U (en) * | 2015-11-30 | 2016-04-06 | 广州丽格打印耗材有限公司 | Ink filtration equipment |
| CN205307926U (en) * | 2016-01-22 | 2016-06-15 | 苏州生益科技有限公司 | Filter element type filter |
| CN205559908U (en) * | 2016-05-10 | 2016-09-07 | 艾欧史密斯(中国)热水器有限公司 | Decompression filter equipment |
| CN210764466U (en) * | 2019-07-26 | 2020-06-16 | 浙江海印数码科技有限公司 | Nanofiltration device for digital printing active ink |
| CN212188091U (en) * | 2020-01-08 | 2020-12-22 | 王勇 | Self-cleaning tube array type filter |
-
2021
- 2021-08-06 CN CN202110901471.XA patent/CN113546468B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503509A (en) * | 1968-05-29 | 1970-03-31 | Marvel Eng Co | Filtering assembly |
| CN205127514U (en) * | 2015-11-30 | 2016-04-06 | 广州丽格打印耗材有限公司 | Ink filtration equipment |
| CN205307926U (en) * | 2016-01-22 | 2016-06-15 | 苏州生益科技有限公司 | Filter element type filter |
| CN205559908U (en) * | 2016-05-10 | 2016-09-07 | 艾欧史密斯(中国)热水器有限公司 | Decompression filter equipment |
| CN210764466U (en) * | 2019-07-26 | 2020-06-16 | 浙江海印数码科技有限公司 | Nanofiltration device for digital printing active ink |
| CN212188091U (en) * | 2020-01-08 | 2020-12-22 | 王勇 | Self-cleaning tube array type filter |
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