CN104324537B - A kind of filter press filter-pressing process - Google Patents
A kind of filter press filter-pressing process Download PDFInfo
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- CN104324537B CN104324537B CN201410468137.XA CN201410468137A CN104324537B CN 104324537 B CN104324537 B CN 104324537B CN 201410468137 A CN201410468137 A CN 201410468137A CN 104324537 B CN104324537 B CN 104324537B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 title claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 239000012065 filter cake Substances 0.000 claims abstract description 24
- 239000000706 filtrate Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims abstract description 4
- 238000010008 shearing Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 21
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000806 elastomer Substances 0.000 claims description 12
- 230000007547 defect Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of filter press filter-pressing process, the course of work of this filter press comprises dynamic filtration and cake layer filters two steps: dynamic filtration: in filter chamber, pump into filtrate by feed pump, the vortex generating structure between feeding-passage, filter pocket, exhalant canal is utilized to produce eddy current, filtrate produces shearing force enter filter chamber by feeding-passage under eddy current effect after, cake layer is suppressed to thicken, the thinner filter cake of generation is made to obtain moving and filter, the product water filtered flows out from delivery port, until filter chamber is full of filter cake under feed pressure effect; Cake layer filters: impose super high pressure hydraulic power to press filtration unit, make two pieces of filter plates make cylinder piston secondary to advance, be directly passed to filter cake by filter plate and implement squeezing to filter residue, the bridge formation intensity of filter residue is produced under the critical action of hydraulic force being greater than it, and scholar becomes, compresses, moisture of squeezing out.The present invention solves the defect that cake moisture is high, cake discharge is difficult, filter cloth loss is large.
Description
Technical field
The present invention relates to filter press.
Background technology
The filter-press dehydration of SMTO catalyst is a very important link during it is produced, and in whole production process, has very important effect.Existing filter-pressing process mainly contains following link: utilize cake layer work principle of filter, fed filtration, when inlet amount reaches the upper limit, time fluid is few, starts diaphragm pressing and carries out press dewatering, after press dewatering completes, carry out removal filter cake, finally dry.
Original work principle of filter and way, adopt cake layer to filter, the filter cake after filtration is thicker, and resistivity is larger, and filter more difficult, make cake moisture high, filtration time is long.Namely material is after filtration completes, still containing a large amount of moisture.So not only make the increasing of follow-up oven dry cost; And filter cake becomes mud shape to stick on filter cloth, and need workman to root out, cause cake discharge difficulty, labo r usage's increasing; Cake moisture is high, and the concentration of toxic gases contained by the inside is just high, larger to the harm of operator; Utilize hard tool to be rooted out by the filter cake sticked on filter cloth, the loss of filter cloth strengthens, and the replacement cycle is short.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of filter press filter-pressing process, solves the defect that cake moisture is high, cake discharge is difficult, filter cloth loss is large.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of filter press filter-pressing process, filter press comprises at least one press filtration unit, each press filtration unit comprises two pieces of parallel filter plates, be provided with at adjacent filter plate outward flange position the elasticity squeeze frame be made up of elastomer frame and filter frame between two pieces of filter plates, formed between described elasticity squeeze frame and filter plate and seal, described elasticity squeeze frame is located at the end of filter plate, described two pieces of filter plates and elasticity squeeze frame surround filter chamber between two pieces of filter plates, described filter plate comprises filter plate body, described filter plate body front and the back side coated by filter cloth, the described filter plate body back side is filtering surface, described filter plate body front surrounding is provided with frame, the positive Middle face of described filter plate body encloses out filter pocket by frame, on the downside of described filter plate body, two corner locations are respectively equipped with charging aperture and delivery port, described filter plate body front is provided with the feeding-passage that is communicated with charging aperture and filter pocket, described filter plate body front is also provided with the exhalant canal that is communicated with delivery port and filter pocket, described feeding-passage, filter pocket, vortex generating structure is provided with between exhalant canal, described filter frame outer ring is evenly provided with at least two protuberances, elastomer frame is corresponding with protuberance position, described elastomer frame clamps between described protuberance and described filter plate, and elastomer frame and described filter plate are fixed, sealing ring is provided with inside described filter frame and between described filter plate,
The course of work of this filter press comprises dynamic filtration and cake layer filters two steps:
Dynamic filtration: pump into filtrate by feed pump in filter chamber, the vortex generating structure between feeding-passage, filter pocket, exhalant canal is utilized to produce eddy current, filtrate produces shearing force enter filter chamber by feeding-passage under eddy current effect after, cake layer is suppressed to thicken, the thinner filter cake of generation is made to obtain moving and filter, the product water filtered flows out from delivery port, until filter chamber is full of filter cake under feed pressure effect;
Cake layer filters: impose super high pressure hydraulic power to press filtration unit, make two pieces of filter plates make cylinder piston secondary to advance, be directly passed to filter cake by filter plate and implement squeezing to filter residue, the bridge formation intensity of filter residue is produced under the critical action of hydraulic force being greater than it, and scholar becomes, compresses, moisture of squeezing out.
Preferably, described feeding-passage comprises and the straightway of the longitudinal central axis line parallel of filter pocket and the arc section to curved extension on the upside of filter pocket longitudinal central axis line.
Preferably, described exhalant canal is and that to filter pocket longitudinal central axis line on the downside of an extend beeline channel vertical with filter pocket longitudinal central axis line.
Preferably, the posterior segment of described feeding-passage and exhalant canal is all arranged along the edge of filter pocket.
Preferably, the longitudinal cross-section of described filter pocket be upper base upper go to the bottom under ladder structure of right angle.
Preferably, described filter frame is for framework is thick and structure that protuberance is thin, and described filter plate is provided with a ring wing in filter plate body edges, and described ring wing thickness is less than the thickness of filter plate body, and described elasticity squeeze frame clamping is located between the two side ring wings.
Preferably, described sealing ring is fixed on filter plate, is wherein provided with the sealing lip extended to filter frame outside sealing ring, and described sealing lip to be fastened on bottom described filter frame on corner.
Preferably, be provided with projection inside described sealing ring, the binding face of described filter plate and described sealing ring is provided with draw-in groove, and described projection is connected in described draw-in groove and realizes fixing.
The present invention is at feeding-passage, filter pocket, vortex generating structure is provided with between exhalant canal, the filtrate suspended in the dynamic filtration process of charging forms spiral vortex after feeding-passage enters filter pocket, spiral vortex constantly stirs the filtrate entering filter chamber, on the one hand filter cloth is washed away, prevent the initial stage of filter residue on filter medium from depositing in a large number, on the other hand, make filtrate by center to surrounding alluviation to limit thickening of filter cake, also filtering simultaneously, like this, mobile filtrate on one side, while filter, in the process of this dynamic filtration, the rate of filtration can not obviously slow down, complete after filter chamber is full of filter cake under feed pressure effect, finally super high pressure hydraulic power is imposed to it, make two pieces of filter plates make cylinder piston secondary to advance, the squeezing of filter cake enforcement to filter residue is directly passed to by filter plate, make the bridge formation intensity of filter residue under the critical action of hydraulic force being greater than it, produce scholar to become, compression, to squeeze out moisture, change and originally utilize cake layer work principle of filter, thus it is high to solve cake moisture, cake discharge is difficult, the defect that filter cloth loss is large.
Therefore beneficial effect of the present invention is embodied in:
1, cake moisture is low, and the rate of filtration is fast, reduces oven dry cost;
2, filter cake becomes pie, and moisture few filter cake intensity is large, and water content is little, and substantially reduce the adhesion of filter cake to filter medium, filter plate one is opened, and utilizes the mechanism of mechanical cake discharge, is just easy to fall down, and without the need to manually rooting out, employment reduces;
3, by reducing the toxic gas produced, the harm to operating personnel is reduced;
4, without the need to rooting out filter cake with hard tool, filter cloth damage is little, and the replacement cycle is long.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the Facad structure schematic diagram of filter plate;
Fig. 2 is A-A generalized section in Fig. 1;
Fig. 3 is the syndeton schematic diagram of elasticity squeeze frame and filter plate.
Detailed description of the invention
Below specific embodiment of the invention scheme is described, as shown in Figure 1 to Figure 3, a kind of dynamic filtration filter press, comprises at least one press filtration unit, and each press filtration unit comprises two pieces of filter plates 1, is provided with elasticity squeeze frame between described two pieces of filter plates.Described elasticity squeeze frame is made up of elastomer frame 2 and filter frame 3, and described elasticity squeeze frame is located at the end of filter plate, be provided with sealing ring 4 inside described filter frame and between described filter plate, described two pieces of filter plates and elasticity squeeze frame surround filter chamber 5 between two pieces of filter plates.
As depicted in figs. 1 and 2, a kind of dynamic filtration filter plate 1, comprise filter plate body, described filter plate body front and the back side coated by filter cloth, the described filter plate body back side is filtering surface 17, described filtering surface is provided with convex stripe, described filter plate body front surrounding is provided with frame 11, the positive Middle face of described filter plate body encloses out filter pocket 12 by frame, on the downside of described filter plate body, two corner locations are respectively equipped with charging aperture 13 and delivery port 15, described filter plate body front is provided with the feeding-passage 14 that is communicated with charging aperture and filter pocket, described filter plate body front is also provided with the exhalant canal 16 that is communicated with delivery port and filter pocket, described feeding-passage, filter pocket, vortex generating structure is provided with between exhalant canal.
Concrete, described feeding-passage comprises and the straightway of the longitudinal central axis line parallel of filter pocket and the arc section to curved extension on the upside of filter pocket longitudinal central axis line.Described exhalant canal is and that to filter pocket longitudinal central axis line on the downside of an extend beeline channel vertical with filter pocket longitudinal central axis line.Like this, filtrate forms roughly spiral structure through feeding-passage, filter pocket, exhalant canal, and due to the jet impact force of charging, filtrate can form strong eddy current in filter chamber.Spiral vortex constantly stirs the filtrate entering filter chamber, on the one hand filter cloth is washed away, prevent the initial stage of filter residue on filter medium from depositing in a large number, on the other hand, make filtrate by center to surrounding alluviation to limit thickening of filter cake, meanwhile, also filtering, like this, mobile filtrate on one side, while filter, in the process of this dynamic filtration, the rate of filtration can not obviously slow down.
In addition, filter pocket is roughly rounded, the straightway of feeding-passage and exhalant canal and filter pocket tangent, the posterior segment of described feeding-passage and exhalant canal is all arranged along the edge of filter pocket.The end being exactly described feeding-passage in addition extends through filter pocket longitudinal central axis line, the end of described exhalant canal also extends through filter pocket longitudinal central axis line, and both to exceed the distance of filter pocket longitudinal central axis line roughly equal, test shows, the intensity and the effect that form eddy current like this can be better.
The longitudinal cross-section of described filter pocket be upper base upper go to the bottom under ladder structure of right angle, the filter pocket of so last formation and filter chamber are the little structure of the large lower space of upper space, and such venturi effect is better, and filter effect is better.
As shown in Figure 3, described filter frame 3 outer ring is evenly provided with at least two protuberances 31, and elastomer frame 2 is corresponding with protuberance position, and described elastomer frame 2 clamps between described protuberance and described filter plate, and elastomer frame and described filter plate are fixed.Described filter frame is for framework is thick and structure that protuberance is thin, and described filter plate is provided with a ring wing 101 in filter plate body edges, and described ring wing thickness is less than the thickness of filter plate body, and described elasticity squeeze frame clamping is located between the two side ring wings.Described sealing ring 4 is fixed on filter plate, is wherein provided with the sealing lip 41 extended to filter frame outside sealing ring, and described sealing lip to be fastened on bottom described filter frame on corner.Be provided with protruding 42 inside described sealing ring, the binding face of described filter plate and described sealing ring is provided with draw-in groove 102, and described projection is connected in described draw-in groove and realizes fixing.
The course of work of this filter press comprises dynamic filtration and cake layer filters two steps:
Dynamic filtration: pump into filtrate by feed pump in filter chamber, the vortex generating structure between feeding-passage, filter pocket, exhalant canal is utilized to produce eddy current, filtrate produces shearing force enter filter chamber by feeding-passage under eddy current effect after, cake layer is suppressed to thicken, the thinner filter cake of generation is made to obtain moving and filter, the product water filtered flows out from delivery port, until filter chamber is full of filter cake under feed pressure effect;
Cake layer filters: impose super high pressure hydraulic power to press filtration unit, make two pieces of filter plates make cylinder piston secondary to advance, be directly passed to filter cake by filter plate and implement squeezing to filter residue, the bridge formation intensity of filter residue is produced under the critical action of hydraulic force being greater than it, and scholar becomes, compresses, moisture of squeezing out.
Claims (1)
1. a filter press filter-pressing process, filter press comprises at least one press filtration unit, each press filtration unit comprises two pieces of parallel filter plates, be provided with at adjacent filter plate outward flange position the elasticity squeeze frame be made up of elastomer frame and filter frame between two pieces of filter plates, formed between described elasticity squeeze frame and filter plate and seal, described elasticity squeeze frame is located at the end of filter plate, described two pieces of filter plates and elasticity squeeze frame surround filter chamber between two pieces of filter plates, it is characterized in that: described filter plate comprises filter plate body, described filter plate body front and the back side coated by filter cloth, the described filter plate body back side is filtering surface, described filter plate body front surrounding is provided with frame, the positive Middle face of described filter plate body encloses out filter pocket by frame, on the downside of described filter plate body, two corner locations are respectively equipped with charging aperture and delivery port, described filter plate body front is provided with the feeding-passage that is communicated with charging aperture and filter pocket, described filter plate body front is also provided with the exhalant canal that is communicated with delivery port and filter pocket, described feeding-passage, filter pocket, vortex generating structure is provided with between exhalant canal, described filter frame outer ring is evenly provided with at least two protuberances, elastomer frame is corresponding with protuberance position, described elastomer frame clamps between described protuberance and described filter plate, and elastomer frame and described filter plate are fixed, sealing ring is provided with inside described filter frame and between described filter plate,
The course of work of this filter press comprises dynamic filtration and cake layer filters two steps:
Dynamic filtration: pump into filtrate by feed pump in filter chamber, the vortex generating structure between feeding-passage, filter pocket, exhalant canal is utilized to produce eddy current, filtrate produces shearing force enter filter chamber by feeding-passage under eddy current effect after, cake layer is suppressed to thicken, the thinner filter cake of generation is made to obtain moving and filter, the product water filtered flows out from delivery port, until filter chamber is full of filter cake under feed pressure effect;
Cake layer filters: impose super high pressure hydraulic power to press filtration unit, make two pieces of filter plates make cylinder piston secondary to advance, be directly passed to filter cake by filter plate and implement squeezing to filter residue, make the bridge formation intensity of filter residue under the critical action of hydraulic force being greater than it, produce creep, compress, moisture of squeezing out;
Described feeding-passage comprises and the straightway of the longitudinal central axis line parallel of filter pocket and the arc section to curved extension on the upside of filter pocket longitudinal central axis line; Described exhalant canal is and that to filter pocket longitudinal central axis line on the downside of an extend beeline channel vertical with filter pocket longitudinal central axis line; The posterior segment of described feeding-passage and exhalant canal is all arranged along the edge of filter pocket; The longitudinal cross-section of described filter pocket be upper base upper go to the bottom under ladder structure of right angle; Described filter frame is for framework is thick and structure that protuberance is thin, and described filter plate is provided with a ring wing in filter plate body edges, and described ring wing thickness is less than the thickness of filter plate body, and described elasticity squeeze frame clamping is located between the two side ring wings; Described sealing ring is fixed on filter plate, is wherein provided with the sealing lip extended to filter frame outside sealing ring, and described sealing lip to be fastened on bottom described filter frame on corner; Be provided with projection inside described sealing ring, the binding face of described filter plate and described sealing ring is provided with draw-in groove, and described projection is connected in described draw-in groove and realizes fixing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410468137.XA CN104324537B (en) | 2014-09-15 | 2014-09-15 | A kind of filter press filter-pressing process |
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| CN201410468137.XA CN104324537B (en) | 2014-09-15 | 2014-09-15 | A kind of filter press filter-pressing process |
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| CN104324537B true CN104324537B (en) | 2016-02-10 |
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| CN105854368B (en) * | 2016-06-14 | 2018-02-09 | 宁波创力液压机械制造有限公司 | One kind is without glue pipe type precision plate filter |
| CN111957083B (en) * | 2020-09-17 | 2025-04-08 | 第一环保（深圳）股份有限公司 | All-round high-frequency eddy current heating and drying filter plate |
| CN114797202B (en) * | 2022-06-23 | 2022-09-13 | 福建省粤华环保科技有限公司 | Dynamic sewage treatment equipment |
| CN119461768A (en) * | 2024-11-14 | 2025-02-18 | 天津市星拓科技发展有限公司 | A filter plate group and sludge filter pressing method for achieving deep dehydration of sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3884805A (en) * | 1974-05-13 | 1975-05-20 | Artisan Ind | Apparatus and process for continuous concentration of solids from a solids-containing fluid |
| US3989629A (en) * | 1975-07-17 | 1976-11-02 | Artisan Industries Inc. | Apparatus and system for stabilizing the disc elements of a rotary concentrator for solids-containing fluids |
| JPS5929009A (en) * | 1982-08-10 | 1984-02-16 | Kurita Mach Mfg Co Ltd | Inspection device of pressing membrane of pressing filter plate |
| ITBO20040820A1 (en) * | 2004-12-28 | 2005-03-28 | Franco Grigoletti | EXHAUST ORGAN FOR FILTER PRESS AND RELATIVE STRUCTURE |
| CN201906498U (en) * | 2010-12-08 | 2011-07-27 | 浙江金鸟压滤机有限公司 | Filter press capable of realizing crossed filtering through cross flow and parallel flow |
| CN102309876B (en) * | 2011-08-29 | 2013-08-28 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN202170288U (en) * | 2011-08-29 | 2012-03-21 | 浙江金鸟压滤机有限公司 | Improved dynamic filtering and squeezing dehydrator |
| CN102974139B (en) * | 2012-11-16 | 2014-10-15 | 浙江金鸟压滤机有限公司 | Squeezing method for press filter |
| CN202844663U (en) * | 2012-11-16 | 2013-04-03 | 浙江金鸟压滤机有限公司 | Filter press |
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Effective date of registration: 20180601 Address after: 266000 New River ecological chemical industry base, Pingshui Road, Pingdu, Qingdao, Shandong 7 Patentee after: Qingdao Haida new energy material Co., Ltd. Address before: 313113 No. 268, Green Avenue, industrial zone, Si an town, Changxing County, Huzhou, Zhejiang. Patentee before: Zhejiang Goldenbird Filter Press Co., Ltd. |
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Effective date of registration: 20200515 Address after: 266000 Qingdao, Shandong Province, Qingdao City, Pingdu City, New River ecological chemical technology industry base, No. 6 Patentee after: Qingdao Taidong Rui new energy materials Co., Ltd Address before: 266000 New River ecological chemical industry base, Pingshui Road, Pingdu, Qingdao, Shandong 7 Patentee before: QINGDAO HAIDA NEW ENERGY MATERIAL Co.,Ltd. |