CN109260822B - Back-cleaning filter - Google Patents

Back-cleaning filter Download PDF

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Publication number
CN109260822B
CN109260822B CN201811299306.6A CN201811299306A CN109260822B CN 109260822 B CN109260822 B CN 109260822B CN 201811299306 A CN201811299306 A CN 201811299306A CN 109260822 B CN109260822 B CN 109260822B
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CN
China
Prior art keywords
filter
shell
filter aid
casing
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201811299306.6A
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Chinese (zh)
Other versions
CN109260822A (en
Inventor
王成
王龙
王友加
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shijiazhuang Yitong Filter Machinery Co ltd
Original Assignee
Shijiazhuang Yitong Filter Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shijiazhuang Yitong Filter Machinery Co ltd filed Critical Shijiazhuang Yitong Filter Machinery Co ltd
Priority to CN201811299306.6A priority Critical patent/CN109260822B/en
Publication of CN109260822A publication Critical patent/CN109260822A/en
Application granted granted Critical
Publication of CN109260822B publication Critical patent/CN109260822B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D37/00Processes of filtration
    • B01D37/02Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/33Self-supporting filtering elements arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/33Self-supporting filtering elements arranged for inward flow filtration
    • B01D29/333Self-supporting filtering elements arranged for inward flow filtration with corrugated, folded filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/50Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18Heating or cooling the filters

Abstract

The invention discloses a backwashing filter, which comprises a shell, a microporous filtering core fixedly arranged in the shell, an upper sealing cover arranged at the upper part of the shell and a lower sealing cover arranged at the lower part of the shell, wherein a filter aid inlet is arranged at the upper side of the shell, the inner side of the filter aid inlet is communicated with a filter aid pre-coating device, the filter aid pre-coating device comprises a cross rod arranged at the upper side in the shell, two hydraulic cylinders fixedly arranged below the cross rod, a connecting cross rod fixedly arranged at the top end of a hydraulic cylinder shaft and a pre-coating port communicated with the filter aid inlet through a connecting hose, and the pre-coating port is fixedly arranged on the connecting cross rod and corresponds to the microporous filtering core.

Description

Back-cleaning filter
Technical Field
The invention relates to the field of microporous filtration, in particular to a backwashing filter.
Background
The microporous precise filter is a membrane separation technology, the filter is a cylindrical structure, is made of 304 or 316L stainless steel, takes a folding filter element as a filter element, can filter out particles and bacteria with the particle size of more than 0.1 mu m in liquid and gas, is commonly used for precise filtration of micron-sized materials in the industrial production of pharmacy, food, chemical industry and the like, has the advantages of high filtration precision, high filtration speed, less adsorption, no medium falling, no leakage, acid and alkali corrosion resistance, convenient operation and the like, can remove bacteria and particles in injection water and liquid medicine, requires back flushing during cleaning due to the slower filtration speed, cleans and back flushes residual materials after all batches of the materials are filtered, can be repeatedly used, is internally provided with a microporous filter element (a microporous PA pipe or a metal pipe and the like), and aims at accelerating the filtration speed in the prior art, the adopted method is a pressurizing filtration mode, but the adoption of the mode needs to strictly control the pressure difference rising process, otherwise, the microporous tube filter element is easy to block, and the clarity of the filtrate is difficult to ensure.
Disclosure of Invention
The invention aims to provide a backwashing filter which is high in filtering speed, wide in application range and high in automation degree.
The invention adopts the following technical scheme:
the utility model provides a reverse cleaning filter, it includes the casing, fixed setting is in the inside millipore filtration filter core of casing, setting are in upper cover and the setting on casing upper portion are in the lower closing cap of casing lower part, the casing downside sets up the feed inlet, millipore filtration filter core upper portion sets up the filter core shunting pipe with millipore filtration filter core intercommunication, filter core shunting pipe and discharging pipe intercommunication, discharging pipe one side sets up the discharge gate, the discharge gate passes through first solenoid valve and connects material container intercommunication, the discharging pipe opposite side sets up the back flushing port, the back flushing port passes through second solenoid valve and high pressurized air source intercommunication, the discharging pipe downside sets up the sample connection, the sample connection passes through third solenoid valve and sample container intercommunication, the casing upside sets up the filter aid entry, the filter aid entry inboard filter aid intercommunication precoating device, the filter aid precoating device is including setting up the horizontal pole of upside in the casing, The filter aid is characterized in that the two hydraulic cylinders below the cross rod are fixedly arranged, the cross rod is fixedly arranged on the top end of the hydraulic cylinder shaft, and the precoating port communicated with the filter aid inlet through the connecting hose is fixedly arranged on the connecting cross rod and corresponds to the microporous filter element, the electric heater is arranged in the shell, the temperature sensor is arranged in the shell, and the temperature display connected with the temperature sensor is arranged outside the shell.
Furthermore, the filter aid inlet and the filter aid container are connected through the first booster pump and the powder pump in sequence.
Furthermore, the cross section of the pre-coating port is circular, and a spray hole of the pre-coating port is formed in the inner side surface of the pre-coating port.
Furthermore, a pressurizing port communicated with the second pressurizing pump is arranged on the upper sealing cover.
Furthermore, a pressure detection port communicated with a pressure gauge is arranged on the upper sealing cover.
Further, the lower sealing cover is arranged on the lower side of the shell through a turnover mechanism.
Further, the turnover mechanism comprises an air cylinder fixedly arranged on the outer side of the shell and a lower sealing cover hinged to the lower side of the shell, and the lower sealing cover is hinged to an air cylinder shaft.
Furthermore, a sealing ring is arranged on the upper part of the lower sealing cover.
Further, an observation window is arranged on the shell.
Further, a heat-preservation jacket is arranged on the outer side of the shell.
The invention has the following positive effects:
according to the invention, the filter aid pre-coating device is arranged to pre-coat the filter aid on the surface of the microporous filter element from the pre-coating port, the pre-coating port is driven to lift by the hydraulic cylinder, so that the surface of the microporous filter element is comprehensively sprayed, the filtering effect of the microporous filter element is improved by using the filter aid, compared with the conventional pressurized filtering, the filtering effect is better, and the filtering speed is obviously improved.
The invention is provided with the electric heater, the temperature sensor and other devices in the shell, can heat the solution in the filter, is suitable for filtering and processing products with special requirements on processing temperature, and improves the application range of the products.
According to the invention, the back flushing port is arranged, so that a filtering object adhered to the surface of the microporous filtering core is subjected to back flushing operation, the filtering object falls onto the lower sealing cover, and then the lower sealing cover is opened to clean the filtering object, so that the microporous filtering core is prevented from being cleaned independently every time, the disassembling and assembling processes are reduced, and the service life of the microporous filtering core is prolonged.
The lower sealing cover is arranged on the lower side of the shell through the turnover mechanism, so that the shell and the lower sealing cover can be automatically opened and closed, the use is convenient, and the automation degree is high.
The sealing ring is arranged on the upper side of the lower sealing cover, so that the sealing performance of the lower sealing cover is improved, and the use effect under the pressure filtration working condition is facilitated.
The shell is provided with the observation window, and the cleaning condition of the surface of the microporous filtering element is observed through the observation window, so that the filtering effect is ensured.
The upper sealing cover is provided with the pressurizing port and the pressure detection port to control the internal pressure of the machine in real time, so that the problems of filter hole blockage and the like caused by improper pressure control are avoided, and the filtering quality is ensured.
The heat-insulating jacket is arranged on the outer side of the shell, so that the heat-insulating effect of the shell is ensured, and the energy-saving and consumption-reducing effects of the product are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the discharge tube portion of the present invention;
FIG. 4 is a schematic view of a pre-orifice configuration of the present invention;
in the figure, 1, a shell, 2, a microporous filter element, 3, an upper sealing cover, 4, a lower sealing cover, 5, a cross rod, 6, a hydraulic cylinder, 7, a connecting cross rod, 8, a filter aid inlet, 9, a pre-coating opening, 10, a connecting hose, 11, an electric heater, 12, a temperature sensor, 13, a temperature display, 14, a spray hole, 15, a cylinder, 16, a sealing ring, 17, a feed inlet, 18, a filter element shunt pipe, 19, a discharge pipe, 20, a discharge opening, 21, a sampling opening, 22, a filter aid container, 23, a powder pump, 24, a first booster pump, 25, a second booster pump, 26, a booster opening, 27, a pressure gauge, 28, a pressure detection opening, 29, a first electromagnetic valve, 30, a material receiving container, 31, a high-pressure air source, 32, a third electromagnetic valve, 33, a sampling container, 34, a heat-preserving jacket 35, a back-flushing opening, 36.
Detailed Description
The invention is further illustrated below with reference to fig. 1-4.
The invention adopts the following technical scheme:
the invention provides a backwashing filter, which comprises a shell 1, a microporous filtering core 2 fixedly arranged in the shell 1, an upper sealing cover 3 arranged at the upper part of the shell 1 and a lower sealing cover 4 arranged at the lower part of the shell 1, wherein a feed inlet 17 is arranged at the lower side of the shell 1, a filter core shunt pipe 18 communicated with the microporous filtering core 2 is arranged at the upper part of the microporous filtering core 2, the filter core shunt pipe 18 is communicated with a discharge pipe 19, a discharge outlet 20 is arranged at one side of the discharge pipe 19, the discharge outlet 20 is communicated with a material receiving container 30 through a first electromagnetic valve 29, a back flushing port 35 is arranged at the other side of the discharge pipe 19, the back flushing port 35 is communicated with a high-pressure air source 31 through a second electromagnetic valve 36, and a back flushing port 35 is arranged to perform back flushing operation on a filtering object adhered to the surface of the microporous filtering core 2 so as to enable the, then clear up it through opening lower closing cap 4, avoid all will washing alone microporous filter core 2 at every turn, reduced the dismantlement installation to microporous filter core's life has been improved.
The filter aid adopts active carbon as the filter aid, the filter aid pre-coating device comprises a cross rod 5 arranged at the upper side in the shell 1, two hydraulic cylinders 6 fixedly arranged below the cross rod 5, a connecting cross rod 7 fixedly arranged at the top end of the hydraulic cylinder 6, a filter aid inlet 8 arranged at the upper side of the shell 1, and a pre-coating port 9 communicated with the filter aid inlet 8 through a connecting hose 10, wherein the pre-coating port 9 is fixedly arranged on the connecting cross rod 7 and corresponds to the microporous filter element 2, filter aid entry 8 loops through first booster pump 24 and powder pump 23 with filter aid container 22 and is connected, the cross-section of mouth 9 of precoating is the ring shape, the orifice 14 of mouth 9 of precoating is seted up on the medial surface of mouth 9 of precoating, precoating the device and carrying out the filter aid from mouthful 9 to the surface of microfiltration filter core 2 of precoating through setting up the filter aid and precoating, mouth 9 precoating drives through pneumatic cylinder 6 and goes up and down, realizes the comprehensive spraying in surface of microfiltration filter core 2, use through the filter aid improves the filter effect of microfiltration filter core 2, compare in conventional pressure filtration, the filter effect is better, and the filter speed has obvious promotion.
Set up electric heater 11 in the casing 1, casing 1 is inside to set up temperature sensor 12, casing 1 outside set up with temperature display 13 that temperature sensor 12 is connected can heat the solution in the filter, is suitable for the product filtration processing that has special requirements to the processing temperature, has improved the application scope of product.
Set up the pressure boost mouth 26 with second booster pump 25 intercommunication on the upper cover 3, set up the pressure detection mouth 28 with manometer 27 intercommunication on the upper cover 3, control machine internal pressure in real time through setting up pressure boost mouth 26 and pressure detection mouth 28, avoid because the filtration pore jam scheduling problem that pressure control improper leads to has appeared, guaranteed filtration quality.
Lower closing cap 4 passes through tilting mechanism and sets up at casing 1 downside, tilting mechanism is in including fixed cylinder 15 that sets up in the casing 1 outside and articulated the setting lower closing cap 4 of casing 1 downside, closing cap 4 sets up with cylinder 15 axle is articulated down, and lower closing cap 4 passes through tilting mechanism and sets up at the casing downside, realizes opening and closing of casing 1 and lower closing cap 4 automatically, facilitates the use, and degree of automation is high.
And the upper part of the lower sealing cover 4 is provided with a sealing ring 16, so that the tightness of the device is improved, and the use effect under the working condition of pressure filtration is facilitated.
Set up the observation window on the casing 1, observe the clearance condition on 2 surfaces of microporous filtration filter core through the observation window, guarantee the filter effect.
The heat-insulating jacket 34 is arranged on the outer side of the shell 1, so that the heat-insulating effect of the device is ensured, and the energy-saving and consumption-reducing effects of the product are improved.
The hydraulic cylinder 6, the electric heater 11, the temperature sensor 12, the cylinder 15, the powder pump 23, the first booster pump 24, the second booster pump 25, the first electromagnetic valve, the high-pressure air source 31, the third electromagnetic valve 32 and the second electromagnetic valve 36 are all controlled by a PLC controller, and the PLC controller model adopts S-700, so that automatic operation is realized, and labor cost is reduced.
The invention will be further explained and explained in connection with the actual working process.
Closing the cleaned micropore precision filter and the lower sealing cover 4; opening a feed inlet 17, a discharge outlet 20, closing a back flushing port 35 for regeneration, opening a powder pump 23 and a first booster pump 24, pumping the filter aid from a filter aid container 22 to a filter aid inlet 8, spraying the filter aid onto the surface of the microporous filter element 2 through a connecting hose 10 and a pre-coating port 9 in sequence, in the spraying process, extending and contracting a hydraulic cylinder 6 shaft to drive a connecting cross rod 7 and the pre-coating port 9 to move up and down to realize uniform and comprehensive spraying on the microporous filter element 2, then opening a feed pump to press the stock solution into the microporous precise filter from a feed tank, stopping feeding after the stock solution in the microporous precise filter is filled, adjusting the filtering pressure through a second booster pump 25, wherein the starting pressure difference of the filtering should not exceed 0.01Mpa, and the starting pressure difference of the filtering should be less than2The starting pressure difference of the microporous precise filter is kept for about 5 to 10 minutes, and the starting pressure difference is more than 10 meters2The microporous precise filter is characterized in that the starting differential pressure time is not less than 5 minutes, a certain time of filtrate circulation is carried out in a starting period to ensure the clarity of the filtrate, then the filtering differential pressure is increased to the normal filtering differential pressure, the filtration is carried out for a certain time, the thickness of a filter cake of the microporous filtering filter element 2 is increased to a certain thickness value, when the flow rate of the filtrate is reduced to a certain value or the filtering differential pressure is increased to a certain value, the back flushing and deslagging are started, the air of a high-pressure air source 31 enters the microporous precise filter through a back flushing port 35, the filter cake outside the microporous filtering pipe is quickly blown off to enable the filter cake to be fallen onto a lower sealing cover 4, and then the lower sealing cover 4 is opened to recover and treat the filter cake slag, thereby.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and although the present invention is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or equivalent replaced by some technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A backwash filter characterized by: it includes casing (1), fixed setting be in casing (1) inside millipore filtration filter core (2), setting are in upper cover (3) and the setting on casing (1) upper portion are in lower closing cap (4) of casing (1) lower part, casing (1) downside sets up feed inlet (17), millipore filtration filter core (2) upper portion sets up filter core shunting pipe (18) with millipore filtration filter core (2) intercommunication, filter core shunting pipe (18) and discharging pipe (19) intercommunication, discharging pipe (19) one side sets up discharge gate (20), discharge gate (20) through first solenoid valve (29) with connect material container (30) intercommunication, discharging pipe (19) opposite side sets up back flushing mouth (35), back flushing mouth (35) are through second solenoid valve (36) and high pressurized air source (31) intercommunication, discharging pipe (19) downside sets up sample connection (21), sample connection (21) are communicated with a sampling container (33) through a third electromagnetic valve (32), a filter aid inlet (8) is arranged on the upper side of the shell (1), the filter aid inlet (8) is communicated with a filter aid pre-coating device in an inner side, the filter aid pre-coating device comprises a cross rod (5) arranged on the upper side in the shell (1) and a pre-coating port (9) fixedly arranged on two hydraulic cylinders (6) below the cross rod (5), the connecting cross rod (7) is fixedly arranged on the shaft top end of the hydraulic cylinder (6) and communicated with the filter aid inlet (8) through a connecting hose (10), the pre-coating port (9) is fixedly arranged on the connecting cross rod (7) and corresponds to a microporous filtering core (2), an electric heater (11) is arranged in the shell (1), a temperature sensor (12) is arranged in the shell (1), and a temperature display (13) connected with the temperature sensor (12) is arranged outside the shell (1) .
2. A backwash filter according to claim 1 characterised in that the filter aid inlet (8) is connected to the filter aid container (22) in sequence via a first booster pump (24) and a powder pump (23).
3. A backflush filter according to claim 2, characterized in that the cross-section of the precoat opening (9) is circular, the orifices (14) of the precoat opening (9) opening onto the inner side of the precoat opening (9).
4. A backwash filter as claimed in claim 1 wherein said upper cover (3) is provided with a plenum port (26) communicating with a second plenum pump (25).
5. A backwash filter as claimed in claim 4 characterised in that the upper lid (3) is provided with a pressure sensing port (28) communicating with a pressure gauge (27).
6. A backflushing filter according to claim 1, characterized in that the lower cover (4) is arranged on the underside of the housing (1) by means of a tilting mechanism.
7. A backwashing filter according to claim 6, wherein the turnover mechanism comprises a cylinder (15) fixedly arranged outside the housing (1) and a lower cover (4) hingedly arranged on the underside of the housing (1), the lower cover (4) being pivotally connected to the cylinder (15).
8. A backflushing filter according to claim 7 wherein the lower cover (4) is provided at its upper part with a sealing ring (16).
9. A backwash filter as claimed in claim 1 characterised in that a viewing window is provided in the housing (1).
10. A backflushing filter according to claim 1, characterized in that an insulating jacket (34) is provided outside the housing (1).
CN201811299306.6A 2018-11-02 2018-11-02 Back-cleaning filter Active CN109260822B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811299306.6A CN109260822B (en) 2018-11-02 2018-11-02 Back-cleaning filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811299306.6A CN109260822B (en) 2018-11-02 2018-11-02 Back-cleaning filter

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Publication Number Publication Date
CN109260822A CN109260822A (en) 2019-01-25
CN109260822B true CN109260822B (en) 2021-05-07

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310038A1 (en) * 1972-08-21 1974-03-14 Hydromation Filter Co PROCEDURE AND ARRANGEMENT FOR CLEANING FILTER ELEMENTS
CH602164A5 (en) * 1974-07-17 1978-07-31 Holstein & Kappert Maschf
EP0073076A2 (en) * 1981-08-04 1983-03-02 DrM, Dr. Müller AG Method for continuously thickening suspensions
CN1088469A (en) * 1992-11-09 1994-06-29 Isp投资股份有限公司 The device of cross-flow pre-coating method and this method of realization
JP2001025616A (en) * 1999-07-13 2001-01-30 Toshiba Plant Kensetsu Co Ltd Spring filter apparatus and filtering method
CN1307920A (en) * 2000-02-08 2001-08-15 三隆过滤器工业株式会社 Filter and its valve
CN201735240U (en) * 2010-07-07 2011-02-09 海宁圣华过滤设备有限公司 Novel filtering machine
CN204563740U (en) * 2015-04-16 2015-08-19 天津亿利科能源科技发展股份有限公司 A kind of precoating is from process formula particulate filter arrangement
CN206366234U (en) * 2016-11-16 2017-08-01 西安超滤环保科技股份有限公司 A kind of slurry is automatically counter to clean filtering recovering system
CN107744687A (en) * 2017-10-31 2018-03-02 惠州市西格传动部件技术有限公司 A kind of candle filter
CN107970658A (en) * 2017-12-04 2018-05-01 上海大张过滤设备有限公司 Candle filter
CN207532873U (en) * 2017-07-19 2018-06-26 威孔过滤科技(苏州)有限公司 Without raffinate microporous filter
CN207641096U (en) * 2017-12-13 2018-07-24 海宁科诺过滤设备有限公司 A kind of in line filter of micropore

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310038A1 (en) * 1972-08-21 1974-03-14 Hydromation Filter Co PROCEDURE AND ARRANGEMENT FOR CLEANING FILTER ELEMENTS
CH602164A5 (en) * 1974-07-17 1978-07-31 Holstein & Kappert Maschf
EP0073076A2 (en) * 1981-08-04 1983-03-02 DrM, Dr. Müller AG Method for continuously thickening suspensions
CN1088469A (en) * 1992-11-09 1994-06-29 Isp投资股份有限公司 The device of cross-flow pre-coating method and this method of realization
JP2001025616A (en) * 1999-07-13 2001-01-30 Toshiba Plant Kensetsu Co Ltd Spring filter apparatus and filtering method
CN1307920A (en) * 2000-02-08 2001-08-15 三隆过滤器工业株式会社 Filter and its valve
CN201735240U (en) * 2010-07-07 2011-02-09 海宁圣华过滤设备有限公司 Novel filtering machine
CN204563740U (en) * 2015-04-16 2015-08-19 天津亿利科能源科技发展股份有限公司 A kind of precoating is from process formula particulate filter arrangement
CN206366234U (en) * 2016-11-16 2017-08-01 西安超滤环保科技股份有限公司 A kind of slurry is automatically counter to clean filtering recovering system
CN207532873U (en) * 2017-07-19 2018-06-26 威孔过滤科技(苏州)有限公司 Without raffinate microporous filter
CN107744687A (en) * 2017-10-31 2018-03-02 惠州市西格传动部件技术有限公司 A kind of candle filter
CN107970658A (en) * 2017-12-04 2018-05-01 上海大张过滤设备有限公司 Candle filter
CN207641096U (en) * 2017-12-13 2018-07-24 海宁科诺过滤设备有限公司 A kind of in line filter of micropore

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