CN102068840A - Filter plate structure of non-membrane-type pressure filter - Google Patents
Filter plate structure of non-membrane-type pressure filter Download PDFInfo
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- CN102068840A CN102068840A CN2010105785556A CN201010578555A CN102068840A CN 102068840 A CN102068840 A CN 102068840A CN 2010105785556 A CN2010105785556 A CN 2010105785556A CN 201010578555 A CN201010578555 A CN 201010578555A CN 102068840 A CN102068840 A CN 102068840A
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Abstract
The invention discloses a filter plate structure of a non-membrane-type pressure filter, which comprises at least one filter unit, wherein each filter unit comprises two filter plates, an elastic pressing frame is arranged between the two filter plates, and the elastic pressing frame and the filter plates are sealed. When the pressure filter is a box-type pressure filter, a support plate is arranged between the two filter plates, a filter chamber is formed between the filter plates and the adjacent filter unit, the elastic pressing frame comprises pressing movable frames and springs, the pressing movable frames are connected with the ends of the filter plates, and the two ends of the spring are respectively propped against the two pressing movable frames and pass through the support plate. The filter cake formed by filtration is compressed and pressed under high pressure and ultrahigh pressure by the filter plate structure of the invention, the filter cake bridging strength formed during the filtering process of the material is overcome to reach the critical pressure for pressing, thereby the subsequent processing link of the whole filtration can be reduced, the operation cost of the process is reduced, meanwhile more power consumption also can be reduced, and malfunction is not easy to occur because single hydraulic pressure is adopted as a pressure source.
Description
Technical field
The present invention relates to a kind of filter press.
Background technology
Filter press is a kind of intermittent filtering separation device, carries out the Separation of Solid and Liquid operation, is applicable to industry widely.Filtration theory develops densification and squeeze bifurcation theory after the eighties in last century, former common plate and frame filter press changes over chamber-type press filter along with being subjected to densification Theory Influence and development of technology, and the filter pressure that it can bear is higher, the filter cake density of filtering the back generation is bigger, and water capacity more reduces; Especially be subjected to the influence of German van-type diaphragm pressing filter press filter board the nineties again, pay attention to the development of Technology in Pressing, adopt rubber or plastic diaphragms (air pressure or hydraulic pressure) squeeze and filter, the cake dewatering amount of formation is better.As in the environmental protection industry (epi) of mud discharging, reduce oven dry filter cake technical process energy consumption, to play the positive role of energy-saving and emission-reduction, reduction environmental pollution.
Filter press is for applying the machinery that mechanical force realize to be filtered in filter medium one side, be divided into horizontal, chamber-type press filter and plate and frame filter press, vertical type blotter press, belt filter press etc.The structure of filter press is made up of three parts: frame, hold-down mechanism and filter mechanism.With the chamber-type press filter is example:
Frame comprises: (a) thrust plate: it is connected with bearing one of filter press sat up straight drops on the ground, the thrust plate of chamber-type press filter is intermediate feed hole (other position is also arranged) mostly, four angles also have four holes, last two jiaos hole is cleaning solution or squeezing gas feed (also can do filtrate (liquid in the filtration period), and two jiaos are outlet (free flow or undercurrent structure being arranged as filtrate or cleaning solution outlet) down; (b) pressure strip: in order to compress filter plate, filter frame, the roller of both sides moves on the track of crossbeam in order to the support compression plate; (c) crossbeam: be supporting member,, can select coatings such as fiber glass resin, polypropylene, stainless steel coating or new anti-corrosion coating according to the requirement of environment for use corrosion-resistant.
Hold-down mechanism comprises that hand screw compresses, mechanical compaction, hydraulic pressure compress.With the mechanical compaction is example: hold-down mechanism is made up of motor (overload protective device that configuration is advanced) decelerator, gear pair, screw mandrel and hold-down nut.When compressing, motor just changes, and drives decelerator, gear pair, and screw mandrel is rotated in Fixed Nut, promotes pressure strip filter plate, filter frame are compressed.When thrust is increasing; the motor load electric current increases, and when arriving the current value of protector setting greatly, reaches maximum thrust; motor is cut off the electricity supply; stop operating,, can guarantee the impaction state in the course of work reliably because screw mandrel and Fixed Nut have reliable self-locking helical angle; when returning; motor counter-rotating, the briquetting on pressure strip is return when pressing travel switch and is stopped.
Filter mechanism is made up of filter plate, filter frame, filter cloth or squeeze diaphragm plate.Filter cloth is a kind of main filter medium, the selecting for use and using of filter cloth, filter effect there is conclusive effect, will be when selecting for use according to the pH value of filter material, factors such as solid particle size select for use suitable filter cloth material and aperture to guarantee low filtration cost and high filter efficiency, during use, guarantee that filter cloth is smooth not give a discount that the aperture is unimpeded.The filter plate both sides are coated by filter cloth, and when needing the configuration squeeze diaphragm, one group of filter plate is made up of diaphragm pressing plate and corresponding filter plate.The substrate both sides of diaphragm plate are coating rubber or plastic diaphragms, and the barrier film outside is coating filter cloth, and filter plate is common chamber filter plate.Material enters each filter chamber from the charging hole on the thrust plate, and solid particle is trapped within the filter chamber because of the aperture of its particle diameter greater than filter medium (filter cloth), and filtrate is then flowed out from the fluid hole of filter plate below.When filter cake need drain, remove and enter the barrier film interlayer with liquid, gas, filter plate is imposed outside the mechanical force diaphragm pressing, also available compressed air or steam from washing mouthful feeding, with the air-flow displacement, are taken the moisture content in the filter cake out of, to reduce the moisture content of filter cake.
Existing filter press is cake layer work principle of filter (and flowing through filter), and the square root of filtration flux and filtration time is inversely proportional to, and filter cake thickness reaches and is directly proportional with the time square root by the liquid cumulative volume.Along with the prolongation of filtration time time, the filter cake of filter medium face thickens, and resistance strengthens, and the rate of filtration slows down, and filter pressure increases, and finishes until filtering.The stratum granulosum skewness of cake layer (the medium face is to filter cake) forms the fine grained filtering layer, causes filtration difficulty, and filtration time prolongs, and filter pressure increases.
From to rubber or plastic diaphragms filter press operating position, use the field of this technology constantly to enlarge, because the social desirability of green low-carbon, to filtering and squeezing proposition requirements at the higher level, but there are many deficiencies in prior art and product, because barrier film is thin and be subjected to the restriction of material property, the obstacle that existence can't be gone beyond aspect heat resisting and pressure resisting etc.; Production complexity and complex operation, service life is not long; Maintain and replace accessory valency height, needing in addition increases water, gas energy equipment needed thereby, pipeline facilities etc., has increased expense and energy consumption.
Summary of the invention
The object of the present invention is to provide the filter-plate structure of no diaphragm pressing filter press, can solve existing rubber or plastic diaphragms filter press effectively and make complexity, service life is short, inefficient problem.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
The filter-plate structure of no diaphragm pressing filter press,
Comprise at least one filter element,
Each filter element comprises two filters,
It is characterized in that:
Be provided with the elasticity squeeze frame between two filters, form sealing between elasticity squeeze frame and the filter.
Preferably, when filter press is chamber-type press filter, be provided with gripper shoe between two filters, form filter chamber between filter and the adjacent filter element, the elasticity squeeze frame comprises squeezing activity box and spring, the squeezing activity box is connected the end of filter, and the two ends of spring prop up two squeezing activity box respectively and pass gripper shoe.
Further, the squeezing activity box outside is provided with sealing ring.
Preferably, when filter press is plate and frame type filter-press, form filter chamber between two filters, the elasticity squeeze frame is located at the end of filter, the elasticity squeeze frame is provided with the sealing leg towards filter chamber one end, leg props up filter, and elasticity squeeze frame filter chamber one end dorsad is provided with the spacing metal frame of using, elasticity squeeze frame both sides applying filter.
Preferably, when filter press is plate and frame type filter-press, form filter chamber between two filters, the elasticity squeeze frame is located at the end of filter, elasticity squeeze frame and filter directly tilt to fit, less than the elasticity squeeze frame width of filter chamber one end dorsad, elasticity squeeze frame filter chamber one end dorsad is provided with the spacing metal frame of using to the elasticity squeeze frame towards the width of filter chamber one end.
Further, the boring of elasticity squeeze frame forms cushion chamber, and the elasticity squeeze frame is " mouth " font.
Preferably, when filter press is plate and frame type filter-press, form filter chamber between two filters, the elasticity squeeze frame is located at the end of filter, and the elasticity squeeze frame comprises U-shaped sealing ring and elasticity post, U-shaped sealing ring sealing filter chamber, U-shaped sealing ring filter chamber one end dorsad is provided with metal frame, elasticity post both sides prop up filter respectively, and elasticity band of column face is provided with support, and support props up metal frame.
Preferably, when filter press is plate and frame type filter-press, form filter chamber between two filters, the elasticity squeeze frame is located at the end of filter, the elasticity squeeze frame props up filter towards filter chamber one end and realizes sealing, elasticity squeeze frame filter chamber one end dorsad is provided with metal frame, and elasticity post elasticity squeeze frame both sides directly prop up filter respectively.
Further, the elasticity squeeze frame is an overall structure.
Further, the elasticity squeeze frame comprises the column squeeze frame and the outside ring-type squeeze frame at center, metal frame is arranged on the end of column squeeze frame, ring-type squeeze frame outer wall props up filter, column squeeze frame outer wall is provided with projection, ring-type squeeze frame inwall is provided with and protruding corresponding groove, and the ring-type squeeze frame is by groove and protruding cooperating on the outer wall that is looped around the column squeeze frame.
The present invention according to the filtrate characteristic, by plate and frame, van-type or piston type, with elastomeric spring location or oily, cylinder capsule location, to be fixed the filter chamber of thickness, finishes filter process owing to adopted technique scheme.After filter chamber is full of filter cake, and, be subjected to squeezing, compression further to make filter cake, to obtain more dried filter cake to the squeezing of its high-pressure power.The charging pattern of filter material has frame, the outer charging of plate and frame, plate, interior charging.The present invention has following beneficial effect:
1, the filter cake that filters back formation is directly carried out high pressure, super-pressure compression, squeezing, overcome the filter cake bridge formation intensity that material forms in filter process, can reach the compression critical pressure.Thereby can reduce road, whole filtration back processing links, reduce technology operating cost.
2, can fully wash, squeeze filter cake, on environmental protection industry (epi), can reach national mud water capacity and handle standard, ecosystem revivification environment.Need dried filter cake to carry out critical squeezing to the road, back, save the baking needed cost greatly.Press 1KG filter cake drying and reduce by 1% moisture content, amount to RMB 1 yuan of calculating, adopt this technology can reduce a large amount of energy consumptions, this technology is in the popularization in the whole nation, to reducing greenhouse effects and hot driving with the big effect of lifting.
3, operating system is simple, with the single squeezing of hydraulic pressure masterpiece source, not easy break-down.Change and the washing and filtering medium based on need not again, it is good to unload the cake effect.The operating process energy consumption is low, with the contrast of protocnemes squeezing filter press, reduces the investment of facilities such as series matching and water, feed channel, circulation rate height, operation cycle weak point, and day output is big, the efficient height.
4, it is program control that advanced PLC is adopted in the operation of this type, can be according to the simple adjusting process parameter of various materials, and carry out Automatic Control.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of chamber-type press filter;
Fig. 2 is the structural representation of filter element in the chamber-type press filter;
Fig. 3 is the structure enlarged diagram at I place among Fig. 2;
Fig. 4 is the structural representation of plate and frame type filter-press;
Fig. 5 is the structural representation of filter element embodiment one in the plate and frame type filter-press;
Fig. 6 is the structural representation of filter element embodiment two in the plate and frame type filter-press;
Fig. 7 is the structural representation of filter element embodiment three in the plate and frame type filter-press;
Fig. 8 is the structural representation of filter element embodiment four in the plate and frame type filter-press;
Fig. 9 is the structural representation of filter element embodiment five in the plate and frame type filter-press.
The specific embodiment
Extremely shown in Figure 9 as Fig. 1, for the present invention does not have the filter-plate structure of diaphragm pressing filter press, comprise at least one filter element, each filter element comprises two filters 1, be provided with elasticity squeeze frame 2 between two filters 1, form sealing between elasticity squeeze frame 2 and the filter 1.
When filter press is chamber-type press filter, be provided with gripper shoe 3 between two filters 1, form filter chamber 4 between filter 1 and the adjacent filter element, elasticity squeeze frame 2 comprises squeezing activity box 21 and spring 22, squeezing activity box 21 outsides are provided with sealing ring 5, squeezing activity box 21 is connected the end of filter 1, and the two ends of spring 22 prop up two squeezing activity box 21 respectively and pass gripper shoe 3.
When filter press is plate and frame type filter-press, form filter chamber 4 between two filters 1, elasticity squeeze frame 2 is located at the end of filter 1, elasticity squeeze frame 2 is provided with sealing leg 23 towards filter chamber 4 one ends, leg 23 props up filter 1, elasticity squeeze frame 2 filter chamber 4 one ends dorsad is provided with spacing metal frame 24, the elasticity squeeze frame 2 both sides applying filters 1 used.
When filter press is plate and frame type filter-press, form filter chamber 4 between two filters 1, elasticity squeeze frame 2 is located at the end of filter 1, elasticity squeeze frame 2 directly tilts to fit with filter 1, elasticity squeeze frame 2 towards the width of filter chamber 4 one ends less than elasticity squeeze frame 2 width of filter chamber 4 one ends dorsad, elasticity squeeze frame 2 filter chamber 4 one ends dorsad is provided with the spacing metal frame 24 of using, and the boring of elasticity squeeze frame 2 forms cushion chamber 25, and elasticity squeeze frame 2 is " mouth " font.
When filter press is plate and frame type filter-press, form filter chamber 4 between two filters 1, elasticity squeeze frame 2 is located at the end of filter 1, elasticity squeeze frame 2 comprises U-shaped sealing ring 26 and elasticity post 27, U-shaped sealing ring 26 sealing filter chambers 4, U-shaped sealing ring 26 filter chamber 4 one ends dorsad is provided with metal frame 24, and elasticity post 27 both sides prop up filter 1 respectively, elasticity post 27 anchor rings are provided with support 271, and support 271 props up metal frame 24.
When filter press is plate and frame type filter-press, form filter chamber 4 between two filters 1, elasticity squeeze frame 2 is located at the end of filter 1, elasticity squeeze frame 2 props up filter 1 towards filter chamber 4 one ends and realizes sealing, elasticity squeeze frame 2 filter chamber 4 one ends dorsad is provided with metal frame 24, and elasticity post 27 elasticity squeeze frames 2 both sides directly prop up filter 1 respectively.Elasticity squeeze frame 2 is an overall structure, promptly as shown in Figure 8.Elasticity squeeze frame 2 comprises the column squeeze frame 28 and the outside ring-type squeeze frame 29 at center, metal frame 24 is arranged on the end of column squeeze frame 28, ring-type squeeze frame 29 outer walls prop up filter 1, column squeeze frame 28 outer walls are provided with projection 281, ring-type squeeze frame 29 inwalls are provided with and protruding 281 corresponding groove 291, ring-type squeeze frame 29 is by groove 291 and projection 281 cooperate on the outer wall that is looped around column squeeze frame 28, promptly as shown in Figure 9.
Claims (10)
1. the filter-plate structure that does not have the diaphragm pressing filter press,
Comprise at least one filter element,
Described each filter element comprises two filters (1),
It is characterized in that:
Be provided with elasticity squeeze frame (2) between described two filters (1), form sealing between described elasticity squeeze frame (2) and the filter (1).
2. the filter-plate structure of no diaphragm pressing filter press according to claim 1, it is characterized in that: when filter press is chamber-type press filter, be provided with gripper shoe (3) between described two filters (1), form filter chamber (4) between described filter (1) and the adjacent filter element, described elasticity squeeze frame (2) comprises squeezing activity box (21) and spring (22), described squeezing activity box (21) is connected the end of filter (1), and the two ends of described spring (22) prop up two squeezing activity box (21) respectively and pass gripper shoe (3).
3. the filter-plate structure of no diaphragm pressing filter press according to claim 2 is characterized in that: described squeezing activity box (21) outside is provided with sealing ring (5).
4. the filter-plate structure of no diaphragm pressing filter press according to claim 1, it is characterized in that: when filter press is plate and frame type filter-press, form filter chamber (4) between described two filters (1), described elasticity squeeze frame (2) is located at the end of filter (1), described elasticity squeeze frame (2) is provided with sealing leg (23) towards filter chamber (4) one ends, described leg (23) props up filter (1), described elasticity squeeze frame (2) filter chamber (4) one ends dorsad is provided with spacing metal frame (24), described elasticity squeeze frame (2) the both sides applying filter (1) used.
5. the filter-plate structure of no diaphragm pressing filter press according to claim 1, it is characterized in that: when filter press is plate and frame type filter-press, form filter chamber (4) between described two filters (1), described elasticity squeeze frame (2) is located at the end of filter (1), described elasticity squeeze frame (2) directly tilts to fit with filter (1), less than elasticity squeeze frame (2) width of filter chamber (4) one ends dorsad, described elasticity squeeze frame (2) filter chamber (4) one ends dorsad is provided with spacing with metal frame (24) described elasticity squeeze frame (2) towards the width of filter chamber (4) one ends.
6. the filter-plate structure of no diaphragm pressing filter press according to claim 7 is characterized in that: the boring of described elasticity squeeze frame (2) forms cushion chamber (25), and described elasticity squeeze frame (2) is " mouth " font.
7. the filter-plate structure of no diaphragm pressing filter press according to claim 1, it is characterized in that: when filter press is plate and frame type filter-press, form filter chamber (4) between described two filters (1), described elasticity squeeze frame (2) is located at the end of filter (1), described elasticity squeeze frame (2) comprises U-shaped sealing ring (26) and elasticity post (27), described U-shaped sealing ring (26) sealing filter chamber (4), described U-shaped sealing ring (26) filter chamber (4) one ends dorsad is provided with metal frame (24), described elasticity post (27) both sides prop up filter (1) respectively, described elasticity post (27) anchor ring is provided with support (271), and described support (271) props up metal frame (24).
8. the filter-plate structure of no diaphragm pressing filter press according to claim 1, it is characterized in that: when filter press is plate and frame type filter-press, form filter chamber (4) between described two filters (1), described elasticity squeeze frame (2) is located at the end of filter (1), described elasticity squeeze frame (2) props up filter (1) towards filter chamber (4) one ends and realizes sealing, described elasticity squeeze frame (2) filter chamber (4) one ends dorsad is provided with metal frame (24), and described elasticity post (27) elasticity squeeze frame (2) both sides directly prop up filter (1) respectively.
9. the filter-plate structure of no diaphragm pressing filter press according to claim 8 is characterized in that: described elasticity squeeze frame (2) is an overall structure.
10. the filter-plate structure of no diaphragm pressing filter press according to claim 8, it is characterized in that: described elasticity squeeze frame (2) comprises the column squeeze frame (28) and the outside ring-type squeeze frame (29) at center, described metal frame (24) is arranged on the end of column squeeze frame (28), described ring-type squeeze frame (29) outer wall props up filter (1), described column squeeze frame (28) outer wall is provided with projection (281), described ring-type squeeze frame (29) inwall is provided with and projection (281) corresponding groove (291), and described ring-type squeeze frame (29) cooperates on the outer wall that is looped around column squeeze frame (28) by groove (291) and protruding (281).
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| CN 201010578555 CN102068840B (en) | 2010-12-08 | 2010-12-08 | Filter plate structure of non-membrane-type pressure filter |
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|---|---|---|---|
| CN 201010578555 CN102068840B (en) | 2010-12-08 | 2010-12-08 | Filter plate structure of non-membrane-type pressure filter |
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| CN102068840B CN102068840B (en) | 2013-07-31 |
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| CN102249512A (en) * | 2011-06-27 | 2011-11-23 | 胡杭虎 | Deep dehydration device for sludge |
| CN102267794A (en) * | 2011-08-10 | 2011-12-07 | 安徽省通源环境节能有限公司 | Sludge dehydrator |
| CN102309876A (en) * | 2011-08-29 | 2012-01-11 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN102350108A (en) * | 2011-08-29 | 2012-02-15 | 浙江金鸟压滤机有限公司 | Dynamic filtering pressing dehydrator |
| CN102652888A (en) * | 2012-04-19 | 2012-09-05 | 佛山市金凯地过滤设备有限公司 | Filter plate group of horizontal type spring squeezer |
| CN104307227A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Improved structure of filter press |
| CN104307228A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Dynamic-filtration filter press improvement structure |
| CN104740908A (en) * | 2015-04-12 | 2015-07-01 | 韩洪波 | Plate-frame filter press with elastic filtering frame |
| CN107583323A (en) * | 2017-10-19 | 2018-01-16 | 江苏新宏大集团有限公司 | A kind of Horizontal pressing filter |
| CN108339300A (en) * | 2017-12-28 | 2018-07-31 | 上海仁创环境科技有限公司 | Elastomeric seal becomes filter chamber plate and frame filter press |
| CN108786201A (en) * | 2017-05-04 | 2018-11-13 | 斯特拉斯堡过滤器有限两合公司 | For the plate of filter press, filter press, the purposes of filter press and filter press cleaning method |
| CN110354549A (en) * | 2019-08-01 | 2019-10-22 | 景津环保股份有限公司 | Van-type stainless steel heats filter plate and its cast welding composite manufacturing method comprehensively |
| CN112551852A (en) * | 2020-12-10 | 2021-03-26 | 山东莱芜煤矿机械有限公司 | Super-energy filter press |
| CN113318494A (en) * | 2021-06-23 | 2021-08-31 | 山东聚多士能源科技有限公司 | Ultrahigh pressure elastic pressing filter press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102249512B (en) * | 2011-06-27 | 2014-03-26 | 胡杭虎 | Deep dehydration device for sludge |
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| CN102267794A (en) * | 2011-08-10 | 2011-12-07 | 安徽省通源环境节能有限公司 | Sludge dehydrator |
| CN102309876A (en) * | 2011-08-29 | 2012-01-11 | 浙江金鸟压滤机有限公司 | Improvement for dynamic filtration squeezing dewatering machine |
| CN102350108A (en) * | 2011-08-29 | 2012-02-15 | 浙江金鸟压滤机有限公司 | Dynamic filtering pressing dehydrator |
| 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 |
| CN102350108B (en) * | 2011-08-29 | 2013-11-20 | 浙江金鸟压滤机有限公司 | Dynamic filtering pressing dehydrator |
| CN102652888A (en) * | 2012-04-19 | 2012-09-05 | 佛山市金凯地过滤设备有限公司 | Filter plate group of horizontal type spring squeezer |
| CN104307227B (en) * | 2014-09-15 | 2016-04-13 | 浙江金鸟压滤机有限公司 | A kind of filter press modified node method |
| CN104307227A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Improved structure of filter press |
| CN104307228A (en) * | 2014-09-15 | 2015-01-28 | 浙江金鸟压滤机有限公司 | Dynamic-filtration filter press improvement structure |
| CN104740908A (en) * | 2015-04-12 | 2015-07-01 | 韩洪波 | Plate-frame filter press with elastic filtering frame |
| CN108786201A (en) * | 2017-05-04 | 2018-11-13 | 斯特拉斯堡过滤器有限两合公司 | For the plate of filter press, filter press, the purposes of filter press and filter press cleaning method |
| CN107583323A (en) * | 2017-10-19 | 2018-01-16 | 江苏新宏大集团有限公司 | A kind of Horizontal pressing filter |
| CN107583323B (en) * | 2017-10-19 | 2023-11-17 | 江苏新宏大集团有限公司 | Horizontal filter press |
| CN108339300A (en) * | 2017-12-28 | 2018-07-31 | 上海仁创环境科技有限公司 | Elastomeric seal becomes filter chamber plate and frame filter press |
| WO2019128618A1 (en) * | 2017-12-28 | 2019-07-04 | 石文政 | Plate and frame filter press with sealed variable filter chamber of elastomer |
| CN110354549A (en) * | 2019-08-01 | 2019-10-22 | 景津环保股份有限公司 | Van-type stainless steel heats filter plate and its cast welding composite manufacturing method comprehensively |
| CN112551852A (en) * | 2020-12-10 | 2021-03-26 | 山东莱芜煤矿机械有限公司 | Super-energy filter press |
| CN113318494A (en) * | 2021-06-23 | 2021-08-31 | 山东聚多士能源科技有限公司 | Ultrahigh pressure elastic pressing filter press |
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| CN102068840B (en) | 2013-07-31 |
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