CN103143203A - Device and method for pre-spraying filter aid by utilizing plate and frame filter - Google Patents
Device and method for pre-spraying filter aid by utilizing plate and frame filter Download PDFInfo
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- CN103143203A CN103143203A CN2013100783859A CN201310078385A CN103143203A CN 103143203 A CN103143203 A CN 103143203A CN 2013100783859 A CN2013100783859 A CN 2013100783859A CN 201310078385 A CN201310078385 A CN 201310078385A CN 103143203 A CN103143203 A CN 103143203A
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- filter
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- spraying
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- 238000005507 spraying Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 57
- 239000004744 fabric Substances 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000012065 filter cake Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000011324 bead Substances 0.000 claims description 13
- 239000000706 filtrate Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910001562 pearlite Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000011344 liquid material Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000006194 liquid suspension Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The invention provides a device and a method for pre-spraying a filter aid by utilizing a plate and frame filter. The device for pre-spraying the filter aid comprises a filter aid pre-spraying tank, a plate and frame filter, pipelines and valves, wherein the pipelines and the valves are connected with the plate and frame filter; and the device is easy to mount and use. The method for pre-spraying the filter aid comprises steps of: before plate and frame filtering, pre-spraying the filter aid on the surface of filter cloth to form a filter aid layer so as to prevent feed liquid materials from directly contacting with the filter cloth and blocking a feed liquid filter channel; and according to the method, in a filter process, multiple filtration and separation to the filter cloth, the filter aid layer and a filter cake are realized, and purposes of improving the filtering efficiency and the filtering effect are achieved. According to the device and the method, after pre-spraying the filter aid, filtration yield of a single time is remarkably improved, filter residues form cakes and are thoroughly separated from the filter cloth, and the cleaning difficulty of the filer cloth is lowered.
Description
Technical field
The present invention relates to a kind of apparatus and method that improve the plate filter filter efficiency, be specifically related to a kind of by pre-spraying filter aid formation filter aid layer in plate filter, thereby improve plate-frame filtering efficient and effect, be specially adapted to cement suspension plate-frame filtering separation in feed liquid.
Background technology
Plate filter is a kind of filter plant, is used for the feed liquid suspension and separates, and is particularly useful for that concentration is lower in 50% following viscosity, liquid that dregginess is less is done airtight filtration, to reach purification, the requirement that the filter of the essence such as sterilization, clarification and half essence are filtered.The processing of all kinds of feed liquids of industry such as plate filter is widely used in pharmacy, biochemistry, food and drink, water treatment, brewages, oil, electronic chemical, plating, printing and dyeing, environmental protection is present most widely used filter plant.The advantage of plate-frame filtering is simple in structure, easy to manufacture, facility compact, filter area is large and floor space is little, operating pressure is high, cake moisture is few, strong to the applicable ability of various materials, shortcoming is intermittently operated, labour intensity is large, production efficiency is low.Especially containing the cement suspension in liquid filters when clarifying, even drop in feed liquid in advance under the condition of a large amount of filter aids such as perlite, the cement suspension also can be in sheet frame filter cloth surface assembly rapidly, glued together with filter cloth, thereby enter the filter cloth micropore, especially easily stop up the filter cloth hole, cause feed liquid to filter, the single filtration time shortens rapidly, cause frequently clearing up the sheet frame filter residue and clean filter cloth, the amount of labour is large, and efficient is low.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of plate filter to spray in advance the apparatus and method of filter aid in order to solve the problems of the technologies described above, by filter aid being sprayed in advance the filter cloth surface before plate-frame filtering, form the filter aid layer, stop the feed liquid material directly to contact filter cloth, stop up the feed liquid filtration channel, reach the purpose that improves filter efficiency.
The present invention solves the problems of the technologies described above the technical scheme that adopts to be:
A kind of plate filter sprays the device of filter aid in advance, comprises the pre-spray tank of filter aid, plate filter and the pre-spraying valve, inlet valve, water intaking valve and the exhaust-valve that are connected with plate filter; Described pre-spray tank inside sets gradually microwell plate, filter screen and deep bead from down to up, the filter aid charge door is set on the tank body between microwell plate and filter screen, pre-spray tank bottom is connected with the external compression air by air inlet valve, and described pre-spray tank is connected with plate filter with pipeline by pre-spraying valve; Described plate filter has filter layer of cloth, and the side that the feed liquid that the pre-spray tank of described filter aid can be on filter layer of cloth flows into forms filter aid precoating filtering layer, thereby forms the feed separation filter cake when plate-frame filtering.
Further, described microwell plate is that micropore diameter is the porous stainless steel plate of φ 1～5mm, and micropore distributes and gathers is 2～10/cm
2Thickness of slab 2～6mm.
Further, described filter screen is 5～35 purpose stainless steel filtering nets; Described deep bead is the staggered deep bead in left and right, and the deep bead distance is 10～25cm, and orthographic projection overlaps 10～20cm.
A kind of method of pre-spraying filter aid of the device that sprays in advance filter aid according to above-mentioned plate filter, the concrete operation step that sprays in advance filter aid is:
(1), open the filter aid charge door on pre-spray tank, according to the plate-frame filtering area, according to the ratio of 1Kg: 20m2, after disposable input pearlite filtering aid, the sealing charge door;
(2), clean and install plate filter, sheet frame inlet valve and all sheet frame filtrate (liquids keep closing; Open water intaking valve and exhaust-valve; Make and fill with water in plate filter, fully infiltrate filter layer of cloth;
(3), open all filtrate (liquids of plate filter, close water intaking valve and exhaust-valve; Open pre-spraying valve, slowly open the air inlet valve of pre-spray tank; Under pressure, the water that injects in step (2) in plate filter is discharged through filtrate (liquid;
(4), in step (3) after the water emptying in plate filter, increase the open degree of the air inlet valve of pre-spray tank, the pressure that keeps pre-spray tank is 0.3～1Mpa, beginning filter layer of cloth to plate filter carries out filter aid and sprays in advance, pre-spraying is after 5～10 minutes, the side that feed liquid on filter layer of cloth flows into forms filter aid precoating filtering layer, closes air inlet valve and the pre-spraying valve of pre-spray tank, and the filter aid spraying is complete;
(5), slowly open plate filter inlet valve and exhaust-valve, after the exhaust-valve of plate filter has feed liquid to flow out, close exhaust-valve, increase the open degree of the inlet valve of plate filter, keep certain feed pressure, begin normal plate-frame filtering, and in filter process, the multi-filtering of having realized filter layer of cloth, filter aid precoating filtering layer and feed separation filter cake with separate.
The present invention compared with prior art has following technique effect, and it can be in plate-frame filtering, for the sheet frame filter cloth sprays the filter aid layer in advance, in filter process, the multi-filtering of having realized filter cloth, filter aid layer and filter cake with separate, improved the filter efficiency of sheet frame.
The characteristics such as it is lower that the present invention has an input cost, is easy to install, easy to operate after adopting the present invention to spray filter aid in advance to plate-frame filtering, can significantly improve plate-frame filtering efficient, and sheet frame single filtration reduction of feed volume significantly promotes; Pre-input filter aid amount can be less more than 50% in feed liquid, saves filter aid.Simultaneously, in the sheet frame scale removal process, it is high that filter process is held back into the cake rate, and filter residue can come off fully on filter cloth and separate, and filter cloth cleans easily.
Description of drawings
Fig. 1 is the structural representation that plate filter of the present invention sprays the device of filter aid in advance.
Fig. 2 is multi-filtering and the schematic diagram that separates in the feed liquid filter process.
In figure, each component names is as follows:
The 1-air inlet valve, 2-microwell plate, 3-filter aid charge door, 4-filter screen, 5-deep bead, the pre-spray tank of 6-, the pre-spraying valve of 7-, 8-inlet valve, 9-water intaking valve, 10-plate filter, the 11-exhaust-valve, the 12-filter layer of cloth, 13-filter aid precoating filtering layer, 14-feed separation filter cake, 15-feed liquid separated flow to
The specific embodiment
1-2 describes the present invention below in conjunction with accompanying drawing.
Specific embodiments of the invention are that glucose liquid glucose and sugared slag plate frame isolated by filtration as example, elaborate the use of device of the present invention, but the invention is not restricted to the filtration of liquid glucose in the starch refine dsugar technique, also can be used for the plate-frame filtering of other feed liquids.
With reference to Fig. 1, a kind of plate filter sprays the device of filter aid in advance, mainly comprises the pre-spray tank 6 of filter aid, plate filter 10 and the pre-spraying valve 7 that is connected with plate filter, inlet valve 8, water intaking valve 9 and exhaust-valve 11.Described pre-spray tank 6 inside set gradually microwell plate 2, filter screen 4 and deep bead 5 from down to up, on the tank body between microwell plate 2 and filter screen 4, filter aid charge door 3 is set, pre-spray tank bottom is connected with the external compression air by air inlet valve 1, and described pre-spray tank 6 is connected with plate filter 10 with pipeline by pre-spraying valve 7.Described plate filter 10 has filter layer of cloth 12, and the side that the feed liquid that the pre-spray tank 6 of described filter aid can be on filter layer of cloth 12 flows into forms filter aid precoating filtering layer 13, thereby forms feed separation filter cake 14 when plate-frame filtering.
Described microwell plate 2 is the porous stainless steel plate of φ 1～5mm for micropore diameter, and micropore distributes and gathers is 2～10/cm
2Thickness of slab 2～6mm.Described filter screen is 5～35 purpose stainless steel filtering nets; Described deep bead is the staggered deep bead in left and right, and the deep bead distance is 10～25cm, and orthographic projection overlaps 10～20cm.
The concrete operation step of the method for the pre-spraying filter aid of plate filter of the present invention is:
1, the filter aid charge door on the pre-spray tank 6 of unlatching, according to the plate-frame filtering area, according to the ratio of 1Kg: 20m2, after disposable input pearlite filtering aid, the sealing charge door.
2, clean and install plate filter 10, sheet frame inlet valve 8 and all sheet frame filtrate (liquids keep closing; Open water intaking valve 9 and exhaust-valve 11; Make and fill with water in plate filter, fully infiltrate filter layer of cloth.
3, open all filtrate (liquids of plate filter 10, close water intaking valve 9 and exhaust-valve 11; Open pre-spraying valve 7, slowly open the air inlet valve 1 of pre-spray tank; Under pressure, the water that injects in the interior step of plate filter 10 (2) is discharged through filtrate (liquid.
4, in step (3) after the water emptying in plate filter, increase the open degree of the air inlet valve 1 of pre-spray tank 6, the pressure that keeps pre-spray tank is 0.3～1Mpa, beginning filter layer of cloth 12 to plate filter 10 carries out filter aid and sprays in advance, pre-spraying is after 5～10 minutes, the side that feed liquid on filter layer of cloth 12 flows into forms filter aid precoating filtering layer 13, closes air inlet valve 1 and the pre-spraying valve 7 of pre-spray tank; The filter aid spraying is complete.
5, slowly open plate filter inlet valve 8 and exhaust-valve 11, after the exhaust-valve of plate filter has feed liquid to flow out, close exhaust-valve 11, increase the open degree of the inlet valve 8 of plate filter, keep certain feed pressure, begin normal plate-frame filtering, and in filter process, the multi-filtering of having realized filter layer of cloth 12, filter aid precoating filtering layer 13 and feed separation filter cake 14 with separate.
With reference to accompanying drawing 2, of the present invention in plate filter, the feed liquid separated flow is the flow direction of right-to-left to 15, filter layer of cloth 12 right sides at plate filter spray one deck filter aid precoating filtering layer 13 in advance, in filter process, the multi-filtering of having realized filter layer of cloth 12, filter aid precoating filtering layer 13 and feed separation filter cake 14 with separate, improved the filter efficiency of sheet frame.
In plate filter, after adopting pre-spraying filter aid device, can reduce 50% at the pre-interpolation drainage dosage of feed liquid, after the sheet frame single cleaned, the plate-frame filtering amount improved 30%; After filtering, sugared slag becomes the cake rate high, has certain hardness, during the sheet frame cleaning, can separate with filter cloth noresidue sugar slag almost on filter cloth, filter cloth easy to clean fully.
Present invention is directed in plate-frame filtering, the cement material is easy to be bonded at the filter cloth surface, stop up the problem of filtrate channel, provide plate-frame filtering to spray in advance filter aid and formed the method that the filter aid layer forms the interface, stop cement feed blocking filter cloth, improve the plate-frame filtering operating efficiency, provide filter cloth, filter aid layer, filter cake triple filter at filter process simultaneously, promote the feed liquid disintegrate-quality.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (4)
1. a plate filter sprays the device of filter aid in advance, comprises the pre-spray tank of filter aid, plate filter and the pre-spraying valve, inlet valve, water intaking valve and the exhaust-valve that are connected with plate filter; Described pre-spray tank inside sets gradually microwell plate, filter screen and deep bead from down to up, the filter aid charge door is set on the tank body between microwell plate and filter screen, pre-spray tank bottom is connected with the external compression air by air inlet valve, and described pre-spray tank is connected with plate filter with pipeline by pre-spraying valve; It is characterized in that, described plate filter has filter layer of cloth, and the side that the feed liquid that the pre-spray tank of described filter aid can be on filter layer of cloth flows into forms filter aid precoating filtering layer, thereby forms the feed separation filter cake when plate-frame filtering.
2. plate filter according to claim 1 sprays the device of filter aid in advance, it is characterized in that, described microwell plate is that micropore diameter is the porous stainless steel plate of φ 1～5mm, and micropore distributes and gathers is 2～10/cm
2Thickness of slab 2～6mm.
3. plate filter according to claim 1 and 2 sprays the device of filter aid in advance, it is characterized in that, described filter screen is 5～35 purpose stainless steel filtering nets; Described deep bead is the staggered deep bead in left and right, and the deep bead distance is 10～25cm, and orthographic projection overlaps 10～20cm.
4. according to claim 1-3 described plate filters of any one spray the method for pre-spraying filter aid of the device of filter aid in advance, it is characterized in that, the concrete operation step that sprays in advance filter aid is:
(1), open the filter aid charge door on pre-spray tank, according to the plate-frame filtering area, according to 1Kg: 20m
2Ratio, after disposable input pearlite filtering aid, the sealing charge door;
(2), clean and install plate filter, sheet frame inlet valve and all sheet frame filtrate (liquids keep closing; Open water intaking valve and exhaust-valve; Make and fill with water in plate filter, fully infiltrate filter layer of cloth;
(3), open all filtrate (liquids of plate filter, close water intaking valve and exhaust-valve; Open pre-spraying valve, slowly open the air inlet valve of pre-spray tank; Under pressure, the water that injects in step (2) in plate filter is discharged through filtrate (liquid;
(4), in step (3) after the water emptying in plate filter, increase the open degree of the air inlet valve of pre-spray tank, the pressure that keeps pre-spray tank is 0.3～1Mpa, beginning filter layer of cloth to plate filter carries out filter aid and sprays in advance, pre-spraying is after 5～10 minutes, the side that feed liquid on filter layer of cloth flows into forms filter aid precoating filtering layer, closes air inlet valve and the pre-spraying valve of pre-spray tank, and the filter aid spraying is complete;
(5), slowly open plate filter inlet valve and exhaust-valve, after the exhaust-valve of plate filter has feed liquid to flow out, close exhaust-valve, increase the open degree of the inlet valve of plate filter, keep certain feed pressure, begin normal plate-frame filtering, and in filter process, the multi-filtering of having realized filter layer of cloth, filter aid precoating filtering layer and feed separation filter cake with separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078385.9A CN103143203B (en) | 2013-03-06 | 2013-03-06 | Device and method for pre-spraying filter aid by utilizing plate and frame filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078385.9A CN103143203B (en) | 2013-03-06 | 2013-03-06 | Device and method for pre-spraying filter aid by utilizing plate and frame filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103143203A true CN103143203A (en) | 2013-06-12 |
| CN103143203B CN103143203B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310078385.9A Active CN103143203B (en) | 2013-03-06 | 2013-03-06 | Device and method for pre-spraying filter aid by utilizing plate and frame filter |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669153A (en) * | 2019-10-25 | 2020-01-10 | 广东海洋大学 | Method for extracting agar from gracilaria |
| CN114849343A (en) * | 2022-04-29 | 2022-08-05 | 鞍山市方业科技生化厂 | Method for adding filter aid into filter system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084491A (en) * | 1992-09-25 | 1994-03-30 | 中国石油化工总公司兰州炼油化工总厂 | The pressure and filter aid filtration process for refining of water glass |
| CN2461635Y (en) * | 2000-12-26 | 2001-11-28 | 山西省榆次开发区天昌实业有限公司 | Edible vinegar sterilizing and dirt removing filter |
| JP2003047807A (en) * | 2001-08-07 | 2003-02-18 | Kurita Mach Mfg Co Ltd | Filter cloth for filter press |
| CN202237478U (en) * | 2011-08-16 | 2012-05-30 | 江阴市文明体育塑胶有限公司 | Filter device for surface coating machine in sport field |
| CN203235338U (en) * | 2013-03-06 | 2013-10-16 | 山东阜丰发酵有限公司 | Device for pre-spraying filter aid of plate and frame filter |
-
2013
- 2013-03-06 CN CN201310078385.9A patent/CN103143203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084491A (en) * | 1992-09-25 | 1994-03-30 | 中国石油化工总公司兰州炼油化工总厂 | The pressure and filter aid filtration process for refining of water glass |
| CN2461635Y (en) * | 2000-12-26 | 2001-11-28 | 山西省榆次开发区天昌实业有限公司 | Edible vinegar sterilizing and dirt removing filter |
| JP2003047807A (en) * | 2001-08-07 | 2003-02-18 | Kurita Mach Mfg Co Ltd | Filter cloth for filter press |
| CN202237478U (en) * | 2011-08-16 | 2012-05-30 | 江阴市文明体育塑胶有限公司 | Filter device for surface coating machine in sport field |
| CN203235338U (en) * | 2013-03-06 | 2013-10-16 | 山东阜丰发酵有限公司 | Device for pre-spraying filter aid of plate and frame filter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669153A (en) * | 2019-10-25 | 2020-01-10 | 广东海洋大学 | Method for extracting agar from gracilaria |
| CN110669153B (en) * | 2019-10-25 | 2022-02-08 | 广东海洋大学 | Method for extracting agar from gracilaria |
| CN114849343A (en) * | 2022-04-29 | 2022-08-05 | 鞍山市方业科技生化厂 | Method for adding filter aid into filter system |
| CN114849343B (en) * | 2022-04-29 | 2023-10-03 | 鞍山市方业科技生化厂 | Method for adding filter aid to filtration system |
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| CN103143203B (en) | 2015-04-22 |
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Inventor after: Li Deheng Inventor after: Yan Jiwen Inventor after: Li Shubiao Inventor after: Liu Yuantao Inventor after: Liu Jianyang Inventor after: Li Yucheng Inventor after: Wang Yujie Inventor before: Li Deheng Inventor before: Yan Jiwen Inventor before: Li Shubiao Inventor before: Liu Yuantao Inventor before: Liu Jianyang Inventor before: Li Yucheng Inventor before: Wang Yujie |
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Denomination of invention: A device and method for pre spraying filter aid on plate and frame filter Effective date of registration: 20211018 Granted publication date: 20150422 Pledgee: China Construction Bank Corporation Junan sub branch Pledgor: SHANDONG FUFENG FERMENTATION Co.,Ltd. Registration number: Y2021370000120 |
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