CN110812924A - Double-filter-element type filter and filtering method thereof - Google Patents
Double-filter-element type filter and filtering method thereof Download PDFInfo
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- CN110812924A CN110812924A CN201911163107.7A CN201911163107A CN110812924A CN 110812924 A CN110812924 A CN 110812924A CN 201911163107 A CN201911163107 A CN 201911163107A CN 110812924 A CN110812924 A CN 110812924A
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- filter
- filtering
- cylinder
- liquid
- cartridge
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- 238000001914 filtration Methods 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 30
- 230000009977 dual effect Effects 0.000 claims description 12
- 239000011550 stock solution Substances 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000005507 spraying Methods 0.000 abstract description 8
- 239000012065 filter cake Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/885—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices with internal recirculation through the filtering element
-
- 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
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
Abstract
The invention provides a double-filter-element type filter and a filtering method thereof, wherein the filter comprises a cylinder, a filtering assembly is arranged in the cylinder, the bottom of the cylinder is conical, the filtering assembly comprises a first filtering assembly and a second filtering assembly, the second filtering assembly comprises a filtering cylinder with an opening at the bottom, a second filter element is arranged in the filtering cylinder, a filtered liquid discharging port is arranged at the upper end of the filtering cylinder, the feeding end of the filtered liquid discharging port is connected with the liquid outlet end of the second filter element, and the discharging end of the filtered liquid discharging port extends out of the cylinder. The invention has the beneficial effects that: the second filtering component can accelerate the filtration of residual liquid in the tank, increase the utilization rate of materials, save time, reduce resource waste and improve the limitation of filtering volume. Can be used in an auxiliary way or independently. The burden of the filter material at the bottom is reduced by the filtration at the bottom. Meanwhile, the usage amount of an air source can be saved during spraying, and the damage of spraying to a filter cake is reduced.
Description
Technical Field
The invention belongs to the technical field of microporous filtration, and particularly relates to a double-filter-element type filter and a filtering method thereof.
Background
The filter is a device for realizing solid-liquid separation by utilizing a porous filter. The filter cartridge is characterized by generally comprising a filter cartridge and a filter element arranged in the filter cartridge, wherein filtrate enters the filter element for filtration, and filtrate is discharged and collected through a liquid outlet. However, the filter elements in the existing filter are generally concentrated on the flower plate at the top, and the filter elements penetrate through the barrel body part of the filter cartridge, so that the filter cartridge is not thoroughly filtered at the bottom.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a double-filter-element type filter and a filtering method thereof.
The purpose of the invention is realized by the following technical scheme:
dual filter element formula filter, including the barrel, be provided with filtering component in the barrel, the barrel bottom is the toper, filtering component includes first filtering component and second filtering component, second filtering component includes bottom open-ended filter cylinder, be provided with the second filter core in the filter cylinder, the upper end of filtering the barrel is provided with strains the clear liquid discharge gate, the feed end of straining the clear liquid discharge gate with the play liquid end of second filter core is connected, the discharge end of filtering the discharge gate extend set up in outside the barrel.
Preferably, the filter cartridge body is further provided with at least one air inlet pipe outside, and the bottom end of the air inlet pipe is arranged above the bottom end of the filter cartridge body.
Preferably, the filtering cylinder is provided with a vent, and the far end of the vent is arranged outside the cylinder.
Preferably, the lower end of the second filter assembly is disposed at the tapered bottom of the cylinder.
Preferably, the upper end of the second filter assembly is arranged at the central position of the cylinder, and the filter element of the first filter assembly is arranged on the periphery or two sides of the second filter assembly.
Preferably, the bottom of the cylinder body is provided with a flower plate, and the flower plate is provided with filter cloth.
Preferably, the second filter assembly is disposed at the tapered bottom of the bowl.
Preferably, a top cover is arranged at the top of the cylinder body, and a spraying opening is formed in the top of the cylinder body.
Preferably, the filtering method of the dual cartridge filter is characterized by comprising the following steps,
s1, introducing the material to be filtered into the barrel of the filter from the material stock solution kettle through a feed inlet at the bottom of the barrel;
during filtering, opening a vent at the top of the cylinder and a vent of the second filtering component, and simultaneously opening a discharge hole of the first filtering component and a discharge hole of filtered liquid of the second filtering component for full filtering;
s2, when the material is discharged or is discharged, closing the corresponding vent valve and carrying out circulating filtration of the two filter assemblies; when the filtrate is qualified, the first filtering component is used for main filtering, and the second filtering component is switched to low-flow-rate filtering;
s3, when the material stock solution kettle has no material, closing the feed inlet, simultaneously opening a positive blowing valve at the top of the cylinder, when a large amount of gas appears at a discharge port of a clear liquid filter at the upper end of the cylinder, the second filter component becomes the main filter, so that the first filter component switches to low flow rate to filter and finish the filtration of the residual liquid, when a large amount of gas appears at the second filter component, the final liquid is treated in the original filtering mode, and finally, the final liquid is dried to finish the whole filtering process;
and S4, after emptying, opening the bottom of the cylinder, carrying out back flushing, and carrying out slag discharge on filter residues.
Preferably, the second filtering assembly filtering in S3 includes that when the air inlet pipe is located at a position where the liquid in the cylinder body is lower than the air inlet of the air inlet pipe, the air enters the upper end in the filtering cylinder body through the air inlet pipe, the liquid in the filtering cylinder body descends, so that the bottom of the air inlet pipe is immersed again, and the material in the filtering cylinder body is filtered; then, the material in the cylinder 1 is lower than the bottom of the air inlet pipe, so that reciprocating circulation is continuously carried out, most of filtered liquid is taken away by gas-liquid outflow, and thorough filtration is carried out.
The invention has the beneficial effects that: the second filtering component can accelerate the filtration of residual liquid in the tank, increase the utilization rate of materials, save time, reduce resource waste and improve the limitation of filtering volume. Can be used in an auxiliary way or independently. The burden of the filter material at the bottom is reduced by the filtration at the bottom. Meanwhile, the usage amount of an air source can be saved during spraying, and the damage of spraying to a filter cake is reduced.
Drawings
FIG. 1: the invention has a structure schematic diagram.
FIG. 2: the invention also discloses another structural schematic diagram.
Detailed Description
The technical scheme of the invention is specifically explained by combining with an embodiment, and the invention discloses a double-filter-element type filter and a filtering method thereof, which are shown in a combined figure 1-figure 2, wherein the filter comprises a cylinder body 1, the bottom of the cylinder body 1 is conical, and the bottom of the cylinder body 1 is provided with a feeding hole a. The top end of the cylinder body 1 is provided with a spraying port, a vent port b and a positive blowing port. A filtering component is arranged in the cylinder body 1 and comprises a first filtering component and a second filtering component. The first filtering component comprises a filter element 2 and a material collecting pipe arranged at the upper end 21 of the filter element, and a main discharging valve j and auxiliary discharging valves h and i are respectively arranged at a liquid outlet section of the material collecting pipe. The valve diameter of the main discharging valve j is larger than that of the auxiliary discharging valves h and i.
The second filtering component comprises a filtering cylinder body 7 with an opening at the bottom, a second filter element 71 is arranged in the filtering cylinder body 7, and the number of the second filter elements 71 can be set according to requirements. The upper end of the filtering cylinder 7 is similar to the first filtering component and is provided with a filtered liquid discharge port, the feed end of the filtered liquid discharge port is connected with the liquid outlet end of the second filtering element, and the discharge end of the filtered liquid discharge port extends out of the cylinder 1. And the filtering cylinder body 7 is provided with a vent hole c, and the far end of the vent hole c is arranged outside the cylinder body. The emptying port and the filtered liquid discharge port are respectively arranged at different sides of the filtering cylinder body 7.
In order to prevent bubbling, at least one air inlet pipe 72 is further arranged outside the filter cylinder 7, and the bottom end of the air inlet pipe 72 is arranged above the bottom end of the filter cylinder 7, that is, the bottom of the air inlet pipe 72 cannot be lower than the bottom of the filter cylinder 7. The filtering cylinder 7 of the second filtering component can be selectively provided with a spraying port. When the liquid in the cylinder 1 is lower than the air inlet of the air inlet pipe 72, the air enters the upper end in the filtering cylinder 7 through the air inlet pipe 72 by the air inlet pipe 72, and the liquid in the filtering cylinder 7 descends, so that the bottom of the air inlet pipe is immersed again, and the material in the filtering cylinder 7 is filtered; then, the material in the cylinder 1 is lower than the bottom of the air inlet pipe 72, so that the reciprocating circulation is continuously carried out, most of the filtered liquid is taken away by the gas-liquid outflow, and the thorough filtration is carried out.
The invention aims to further solve and improve the problems of waste of filter materials and incomplete filtration at the bottom of the cone in the prior art, so that the filter element of the second filter assembly extends to be arranged at the conical bottom of the cylinder body 1.
When the requirement that the bottom of the filter element of the second filter assembly can extend to the bottom of the cylinder 1 is met, the second filter assembly can be arranged in the cylinder 1 in two different modes. In the first mode, as shown in fig. 1, the upper end of the second filter assembly is disposed at the center of the cylinder 1, and the filter element 2 of the first filter assembly is disposed at the periphery or both sides of the second filter assembly filter cylinder 7. At this time, for more thorough filtration, the bottom of the cylinder 1 is provided with a flower plate 5, and the flower plate 5 is provided with a filter cloth 6.
In a second mode, as shown in fig. 2, the second filtering component is directly disposed at the conical bottom of the cylinder 1, that is, the material at the bottom of the cylinder 1 is continuously filtered.
The invention also discloses a filtering method of the double-filter-element type filter, which is described in detail in the following with reference to figure 1 and comprises the following steps,
s1, introducing the material to be filtered into the barrel of the filter from the material stock solution kettle through a feed inlet a at the bottom of the barrel;
during filtering, opening a vent b at the top of the cylinder 1 and a vent c of the second filtering component, and simultaneously opening a valve at a discharge port of the first filtering component and a filtered liquid discharge port of the second filtering component for full filtering; the valve of the discharge port of the first filtering component comprises a main discharge valve j and auxiliary discharge valves h and i, and the valve of the discharge port of the filtered liquid of the second filtering component comprises discharge valves d, e and f.
And S2, when the material is discharged or is about to be discharged from the vent hole b at the top of the cylinder and the vent hole c of the second filter assembly, closing corresponding vent hole valves. Discharging the filtered liquid through the filtered liquid discharge ports of the first filtering component and the second filtering component, and performing circulating filtration in the two filtering components; namely, the valve d with the large valve diameter at the discharge port is closed, and the filtered clear liquid flows out a little through the valves e and f with the small diameter to be collected. Returning the filtrate which is recycled to be unqualified to the stock solution kettle for filtering so as to form qualified filtrate which meets the requirements.
S3, when the material stock solution kettle has no material, closing the feed inlet a, simultaneously opening the forward blowing valve g at the top of the cylinder 1 until a large amount of gas appears at a filtered liquid discharge port at the upper end of the cylinder, namely a discharge valve j and an auxiliary discharge valve h and i, opening the discharge valve d with a large valve diameter first and then closing the discharge valve j of the large-diameter valve, when a large amount of gas appears at the discharge valves d, e and f, closing the discharge valve d of the large-diameter valve, treating a small amount of residual material in the original filtering mode, and then blowing dry the filter cake to complete the whole filtering process;
and S4, after emptying, opening the bottom of the cylinder, carrying out back flushing, and carrying out slag discharge on filter residues.
The spraying step and the like in the present invention also belong to the conventional techniques in the field, and do not belong to the important point to be protected in the present application, so they are not described herein again.
There are, of course, many other specific embodiments of the invention and these are not to be considered as limiting. All technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the claimed invention.
Claims (10)
1. Dual filter core formula filter, including the barrel, be provided with filtering component in the barrel, its characterized in that, the barrel bottom is the toper, filtering component includes first filtering component and second filtering component, second filtering component includes bottom open-ended filter cylinder, be provided with the second filter core in the filter cylinder, the upper end of filtering the barrel is provided with strains the clear liquid discharge gate, the feed end of straining the clear liquid discharge gate with the play liquid end of second filter core is connected, the discharge end of filtering the discharge gate extend set up in outside the barrel.
2. The dual cartridge filter of claim 1, wherein at least one air inlet pipe is further disposed outside the filter cartridge body, and a bottom end of the air inlet pipe is disposed above a bottom end of the filter cartridge body.
3. The dual cartridge filter of claim 2 wherein the filter cartridge has a vent disposed therein, the distal end of the vent being disposed outside the cartridge.
4. A dual cartridge filter according to claim 1 wherein the lower end of the second filter assembly is disposed at the conical bottom of the bowl.
5. The dual cartridge filter according to claim 4 wherein the upper end of the second filter assembly is disposed at the center of the drum, and the cartridge of the first filter assembly is disposed at the periphery or both sides of the second filter assembly.
6. The dual cartridge filter according to claim 5, wherein a flower plate is provided on the bottom of the cylinder, and a filter cloth is provided on the flower plate.
7. A dual cartridge filter according to claim 1 wherein the second filter assembly is disposed at the conical bottom of the bowl.
8. The dual cartridge filter of claim 1 wherein a top cap is provided on the top of the cartridge body and a spray port is provided on the top of the cartridge body.
9. The filtration method in a dual cartridge filter according to any one of claims 1 to 8, comprising the steps of,
s1, introducing the material to be filtered into the barrel of the filter from the material stock solution kettle through a feed inlet at the bottom of the barrel;
during filtering, opening a vent at the top of the cylinder and a vent of the second filtering component, and simultaneously opening a discharge hole of the first filtering component and a discharge hole of filtered liquid of the second filtering component for full filtering;
s2, when the material is discharged or is discharged, closing the corresponding vent valve and carrying out circulating filtration of the two filter assemblies; when the filtrate is qualified, the first filtering component is used for main filtering, and the second filtering component is switched to low-flow-rate filtering;
s3, when the material stock solution kettle has no material, closing the feed inlet, simultaneously opening a positive blowing valve at the top of the cylinder, when a large amount of gas appears at a discharge port of a clear liquid filter at the upper end of the cylinder, the second filter component becomes the main filter, so that the first filter component switches to low flow rate to filter and finish the filtration of the residual liquid, when a large amount of gas appears at the second filter component, the final liquid is treated in the original filtering mode, and finally, the final liquid is dried to finish the whole filtering process;
and S4, after emptying, opening the bottom of the cylinder, carrying out back flushing, and carrying out slag discharge on filter residues.
10. The filtering method of a dual cartridge filter according to claim 9, wherein the filtering in S3 includes that when the gas inlet pipe is located at the position where the liquid in the cylinder is lower than the gas inlet of the gas inlet pipe, the gas enters the upper end of the filter cylinder body through the gas inlet pipe, the liquid in the filter cylinder body descends, so that the bottom of the gas inlet pipe is immersed again, and the material in the filter cylinder body is filtered; then, the material in the cylinder is lower than the bottom of the air inlet pipe, so that reciprocating circulation is continuously carried out, most of filtered liquid is taken away by gas-liquid outflow, and thorough filtration is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163107.7A CN110812924A (en) | 2019-11-25 | 2019-11-25 | Double-filter-element type filter and filtering method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163107.7A CN110812924A (en) | 2019-11-25 | 2019-11-25 | Double-filter-element type filter and filtering method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110812924A true CN110812924A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911163107.7A Pending CN110812924A (en) | 2019-11-25 | 2019-11-25 | Double-filter-element type filter and filtering method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973229A (en) * | 2021-04-21 | 2021-06-18 | 上海佳誉过滤设备有限公司 | Online filtering system for fluid purification and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2505154Y (en) * | 2001-09-21 | 2002-08-14 | 新昌德力石化设备有限公司 | Solid-liquid filter without residual liquid |
| JP2009233565A (en) * | 2008-03-27 | 2009-10-15 | Kikkoman Corp | Cylindrical filtration element and filtration apparatus or stock solution filtration apparatus |
| CN201399303Y (en) * | 2009-05-14 | 2010-02-10 | 石家庄波特无机膜分离设备有限公司 | Internal filtering type filter |
| CN201565187U (en) * | 2009-05-14 | 2010-09-01 | 石家庄波特无机膜分离设备有限公司 | Micro-hole filter without residual liquid |
| CN110064240A (en) * | 2019-05-23 | 2019-07-30 | 南京圣卡孚科技有限公司 | A kind of quick solid-liquid filtration, drying and wash mill and technique |
| CN211357913U (en) * | 2019-11-25 | 2020-08-28 | 威孔过滤科技（苏州）有限公司 | Double filter element type filter |
-
2019
- 2019-11-25 CN CN201911163107.7A patent/CN110812924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505154Y (en) * | 2001-09-21 | 2002-08-14 | 新昌德力石化设备有限公司 | Solid-liquid filter without residual liquid |
| JP2009233565A (en) * | 2008-03-27 | 2009-10-15 | Kikkoman Corp | Cylindrical filtration element and filtration apparatus or stock solution filtration apparatus |
| CN201399303Y (en) * | 2009-05-14 | 2010-02-10 | 石家庄波特无机膜分离设备有限公司 | Internal filtering type filter |
| CN201565187U (en) * | 2009-05-14 | 2010-09-01 | 石家庄波特无机膜分离设备有限公司 | Micro-hole filter without residual liquid |
| CN110064240A (en) * | 2019-05-23 | 2019-07-30 | 南京圣卡孚科技有限公司 | A kind of quick solid-liquid filtration, drying and wash mill and technique |
| CN211357913U (en) * | 2019-11-25 | 2020-08-28 | 威孔过滤科技（苏州）有限公司 | Double filter element type filter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973229A (en) * | 2021-04-21 | 2021-06-18 | 上海佳誉过滤设备有限公司 | Online filtering system for fluid purification and use method thereof |
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Effective date of registration: 20231124 Address after: No. 133 Wufengshan Road, New District, Zhenjiang City, Jiangsu Province, 212000 Applicant after: Weikong Filtration Technology (Jiangsu) Co.,Ltd. Address before: No.19, Beiqiao ecological road, Xiangcheng District, Suzhou City, Jiangsu Province Applicant before: WEI KONG FILTRATION TECHNOLOGY (SUZHOU) CO.,LTD. |