CN102078722B - High-efficiency external filter core revolving drum positioning backwashing filter - Google Patents
High-efficiency external filter core revolving drum positioning backwashing filter Download PDFInfo
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- CN102078722B CN102078722B CN 201010601552 CN201010601552A CN102078722B CN 102078722 B CN102078722 B CN 102078722B CN 201010601552 CN201010601552 CN 201010601552 CN 201010601552 A CN201010601552 A CN 201010601552A CN 102078722 B CN102078722 B CN 102078722B
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Abstract
The invention relates to a high-efficiency external filter core revolving drum positioning backwashing filter. The high-efficiency external filter core revolving drum positioning backwashing filter comprises a shell, a motor, a speed reducer, an intermittent rotation positioner, a revolving drum, a fixed dust-absorbing device, a signal feedback device and a programmable controller, wherein a guide cover is arranged at one end of the revolving drum; the revolving drum is arranged in the shell; the fixed dust-absorbing device is arranged outside the revolving drum; the motor drives the intermittent rotation positioner through the speed reducer to rotate; the programmable controller controls intermittent rotation of the motor and the opening and starting of a blowoff valve according to a signal which is transmitted by a differential pressure transmitter and the signal feedback device; and when a filter core revolving drum stops rotating intermittently, the fixed dust-absorbing device can cover and seal an inlet of 1/N group of filter cores exactly. The filtering effect of the structure is hundreds of times that of the traditional structure; and the filter cores can be regenerated.
Description
Technical field
The present invention relates in the field of Environment Protection liquid processing system a kind of solid particle polluter that removes in the liquid stream that is specifically designed to, the high-efficiency external filter core revolving drum positioning backwashing filter of realization on-line cleaning.
Background technology
Excretion machine and backwash zone blow-by and continuous rotation during present traditional backwash filter backwash, be subjected to it to affect filtering accuracy and can only reach 2-5mm, do not produce explosive backwash, just utilize excretion machine mouth rate of flow of fluid to produce negative-pressure adsorption filter cake on every side, so the filter cake elimination efficiency is low, the equipment cycle of operation is short, and whole filter backwash water consumption is very large.The present invention has breakthrough at filtration device structure, adopts rational structure and technology, remedies the some shortcomings of existing filter.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of excretion machine of can realizing and docks with the relative standstill seal in backwash zone, thereby but canbe used on line utilizes the back pressure of fluid that every group of filter core (filter screen) carried out the one by one high-efficiency external filter core revolving drum positioning backwashing filter of explosive thoroughly backwash.
The present invention is achieved through the following technical solutions: a kind of high-efficiency external filter core revolving drum positioning backwashing filter, comprise housing, housing one end arranges the feed(raw material)inlet, the other end is provided with the filtered fluid outlet, rotary drum is installed in the housing, drum surface is evenly distributed with some groups of filter cores, and kuppe is installed in an end of rotary drum; This filter also comprises: fixing dirt sucking device, be arranged on the rotary drum outside, and docking with one or more groups filter core sealing intermittently; Differential pressure transmitter is used for gathering the inside and outside pressure reduction of rotary drum; Programmable Logic Controller, the signal that sends according to differential pressure transmitter is by the intermittent rotary of driving mechanism and then control rotary drum.
Fixedly the soil pick-up dish of dirt sucking device links to each other with blowdown connection by the water conservancy diversion stay pipe, and sewage draining valve is set in the blowdown connection, and the waste liquid that backwash produces is discharged from the backwash sewage draining exit.
Rotary drum is connected by gear train with the intermittent rotary locator, and Programmable Logic Controller drives the intermittent rotary locator by institute's start signal output motor via reducer of programme and rotates, and carries out intermittent rotary by gear-box drive rotary drum.
Signal feedback device is installed on the intermittent rotary locator, and signal feedback device sends signal to Programmable Logic Controller, and Programmable Logic Controller is by the unlatching of solenoid control valve.
Programmable Logic Controller is provided with hand push button, when needs wash, presses hand push button, and the force start cyclelog is finished cleaning; Or set timing according to user's technological requirement at Programmable Logic Controller and wash.
Pressure gauge is installed on the housing, also is provided with access hole, the liquid during maintenance in the equipment is discharged from discharging hole.
The valve that configures on filter stock entrance, backwash sewage draining exit, the discharging hole is the double-acting type operated pneumatic valve, control by Programmable Logic Controller, the pneumatic actuator of Open valve is the double-acting type cylinder, when the faults such as filter appearance power failure or blowing-out, filter inlet and discharge valve door is in protects position state and warning.
The shell of filtering container, can adopt material is 16MnR (adding forever anticorrosion) or stainless steel, the supervisory rules of pressing force vessel safety technology and GB150-1998 design of pressure vessels manufacturing inspection and examination.Housing, channel part add heat tracing pipe in case of necessity, and insulation thickness is determined by the user.Equipment connection adopts HG20592-97 flange standard, and all system and pipe arrangement will be installed on the device structure, be coated with antirust paint.
Beneficial effect of the present invention is to realize excretion machine standstill seal docking relative to the backwash zone, thereby but canbe used on line utilizes the back pressure of fluid that every group of filter core (filter screen) carried out one by one thoroughly backwash of burst, and its backwash intensity is traditional decades of times.Simultaneously because the special construction of filter core revolving drum, filter element is detachable, and docks with fixing dirt sucking device sealing, and filter efficiency is traditional hundreds of times, and has realized the regeneration of filter core.If total N (N is natural number) group filter core, 1/N group filter core is in backwash, and N-1 group filter core is always in running order, can filter incessantly stock media, has improved greatly the efficient of filtering.
Description of drawings
Fig. 1 high-efficiency external filter core revolving drum positioning backwashing filter structure schematic representation
Fig. 2 high-efficiency external filter core revolving drum positioning backwashing filter apparatus structural representation
Fig. 3 high-efficiency external filter core revolving drum positioning backwashing filter left view
Shown in the figure: 1. Motor 2. Tachometer 3. Intermittent rotation locator 4. Packing seal 5. Teeth fit couplings 6 gearbox 7. Teeth fit Union coupling 8. bearing bracket 9. drum support plate 10. drum 11. filter 12. fixed sewage suction device 13. drum spindle 14. bearing bracket 15. sewage takeover 16. shroud 17. sewage valve 18. shell 19. overhaul 20. differential pressure transmitter 21. programmable controller 22 Pressure gauge 23. clamping device 24. filter inlet butterfly valve 25 signal feedback device 26. diversion support tube N1. material entrance N2. filtered liquid outlet N3 . backwash outfall N4. drain port N5. drain port
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
As shown in Figures 1 to 3, a kind of high-efficiency external filter core revolving drum positioning backwashing filter, comprise housing, motor, reductor, intermittent rotary locator, rotary drum, fixedly dirt sucking device, valve, signal feedback device and Programmable Logic Controller, this filtration system adopts automatically and manual compatible mode of operation.Filtering container is furnished with differential pressure transmitter and Programmable Logic Controller (program control system adopts full Intelligent Chinese-character version human-computer dialogue color touch display screen) in the system, differential pressure transmitter outputs signal to programmable system, when fluid inlet and outlet pressure reduction or time reach setting value, Programmable Logic Controller makes the actuating of relay, electric motor starting drives the intermittent rotary locator and drives rotary drum, rotary drum just seals and covers 1/N group filter core entrance during each intermittence, and make the anti-explosion is electromagnetic valve events by the logical course of having programmed and supply with source of the gas according to the signal that signal feedback device sends and drive valve actuator and open fast T time second, utilize fluid back pressure 1/N to be organized filter cake back flush on the cartridge surface at every turn, realize filter core regeneration.
When equipment is started working, start control system, close sewage draining valve 17, fluid pressure is P in normal operation, and stock media enters in the filter through feed(raw material)inlet N1, realizes filtering by filter element surface again through filter core revolving drum 10, medium after the filter flows out from filtered fluid outlet N2, when filter cake is piled up gradually, make filter core 11 effective filtration areas reduce the rotary drum pressure drop
Rise, differential pressure transmitter 20 output signals when causing two ends pressure reduction to reach predetermined value, Programmable Logic Controller rotates by reductor 2 drive intermittent rotary locators 3 by institute's start signal output motor of programme 1, and drive rotary drums 10 by gear-box 6 and carry out intermittent rotary, because it has been carried out Design Orientation in advance, when rotary drum 10 intermittently stops, fixedly dirt sucking device 12 has just covered and has sealed the entrance of 1/N group filter core, signal feedback device 25 on the intermittent rotary locator 3 has sent signal to Programmable Logic Controller 21 at once, Programmable Logic Controller powers on by magnetic valve, opens fast valve 17 and delays time to T second.Because the straight-through atmospheric pressure of blow-off pipe, so the 1/N filter core generation of interfaces that is covered
Back pressure, so a large amount of fluids flow out by excretion machine in the other direction at a high speed by cartridge surface, the filter cake that simultaneously cartridge surface is formed rinses out.T late gate second 17 is closed, just rotary drum 10 carries out stopping when intermittent rotary 360/N spends, fixedly dirt sucking device 12 has just covered again and has sealed the in addition entrance of 1/N group filter core, signal feedback device 25 on the intermittent rotary locator 3 has sent signal to Programmable Logic Controller 21 at once, Programmable Logic Controller powers on by magnetic valve, make sewage draining valve 17 open fast again T second, filter core is carried out backwash, backwashing system stops when setting value until pressure drop is extremely hanged down by that analogy.
For the purpose that reaches the filtering solid particle and to the requirement of different medium quality, can adopt the 316L stainless steel metal to twine metal and the nonmetal filter medium of wedge shaped wires (Johnson's screen pack) or multiple filter material net and various different filtering accuracies, and by treating capacity, the suitable flow of control unit filter area, with effectively the outer surface of catching, solid particles at filter element, form equally distributed filter cake, filter cake can following method be removed:
1.1 automatic control mode
A. differential
Reach when setting pressure difference, start Programmable Logic Controller, filter element is washed.And can pile up the situation curve by the impurity of field erected touch display unit or DCS observation filter element.
B. the time is set
Arrive setting-up time, Programmable Logic Controller automatic back-washing system washes filter element.
1.2 manual operation
Be provided with at the scene hand push button, when needs wash, press hand push button, namely the force start cyclelog is finished above-mentioned cleaning when exporting such as differential pressure signal; Or set timing according to user's technological requirement at Programmable Logic Controller and wash (only have when filter does not wash for a long time, just can start this function).
1.3 other explanations
When the faults such as filter appearance power failure or blowing-out, filter advances sewage draining valve and is in a state of protecting and warning.Realize valve guarantor bit function, it is the double-acting type cylinder that pneumatic actuator requires.
Control cabinet is provided with RS485, can carry out Direct Communication with DCS.
1.4 filter core is described
Selecting filter main is to select to be fit to filter core, to provide the removal efficient of optimum filter, long-term on-line operation and on-line cleaning under suitable pressure reduction.
Characteristics---the normal operating of desirable-auto backwash filter filter core:
◆ cross filter core itself and should be easy to be backwashed the liquid cleaning, the filter cake that forms in cartridge surface is easy to come off
◆ for certain circulation, need to select suitable filter area enough low with the hole speed of guaranteeing filter bores, be difficult for recoil in the filter core in order to avoid filtering particle is embedded in
◆ filter element should guarantee that fluid can distribute equably, and uniformly fluid distribution makes the filter core of filtration form more uniform filter cake, and backwash is easier to
◆ the intensity of filter element should satisfy the requirement of long-time running
◆ filter system should carry out stable operation under relatively low pressure reduction
Comprehensive These characteristics, the backwash filter of removing for rigid particle preferably uses stainless steel metal to twine wedge shaped wires (Johnson's screen pack) or multiple filter material net, is surperficial interception filter filter core.Its characteristic of property is:
▲ wedge shaped wires or multiple filter medium structure, mechanical strength is strong
Resistance to erosion ability and service life are improved in the filtration slit of ▲ arc
The filter core of ▲ 25-100 μ m different size is available
▲ filter the slit to be evenly distributed
▲ wedge-shaped design increases more than 7 times reverse differential pressure, and flushing is thorough, and power of regeneration is strong
▲ percent opening: more than the 5-30%
▲ material: 316L is suitable for various fluids
Backwash filter for non-rigid particle and suspended substance removal preferably uses stainless steel metal sintered meshwork/powder sintered plate/metallic fiber sintered plate/organic polymer sintered pipes, is deep layer interception filter filter core.Its characteristic of property is:
▲ pollutant holding capability is large, the high 50-80% of voidage
▲ filter efficiency is high, can reach 0.1 micron
The filter core of ▲ 0.1-100 μ m different size is available
▲ initial drop is little, and flushing is thorough, and power of regeneration is strong
▲ material: applicable various different fluid.
Claims (4)
1. high-efficiency external filter core revolving drum positioning backwashing filter, comprise housing (18), housing (18) one ends arrange feed(raw material)inlet (N1), the other end is provided with filtered fluid outlet (N2), it is characterized in that being equipped with in the housing (18) rotary drum (10), rotary drum (10) surface uniform is distributed with some groups of filter cores (11), and kuppe (16) is installed in an end of rotary drum (10); This filter also comprises:
Fixedly dirt sucking device (12) is arranged on rotary drum (10) outside, and sealing with one or more groups filter core (11) of intermittence docked; The soil pick-up dish of described fixedly dirt sucking device (12) links to each other with blowdown connection (15) by water conservancy diversion stay pipe (26), sewage draining valve (17) is set in the blowdown connection (15), and the waste liquid that backwash produces is discharged from backwash sewage draining exit (N3);
Differential pressure transmitter (20) is used for gathering the inside and outside pressure reduction of rotary drum;
Programmable Logic Controller (21), the signal that sends according to differential pressure transmitter (20) is by the intermittent rotary of driving mechanism and then control rotary drum (10); Wherein, described rotary drum (10) is connected by gear train with intermittent rotary locator (3), Programmable Logic Controller drives intermittent rotary locator (3) by institute's start signal output motor of programme (1) by reductor (2) and rotates, and carries out intermittent rotary by gear-box (6) drive rotary drum (10); Signal feedback device (25) is installed on the intermittent rotary locator (3), and signal feedback device (25) sends signal to Programmable Logic Controller (21), and Programmable Logic Controller (21) is by the unlatching of solenoid control valve (17).
2. high-efficiency external filter core revolving drum positioning backwashing filter according to claim 1 is characterized in that, Programmable Logic Controller (21) is provided with hand push button, when needs wash, presses hand push button, and the force start cyclelog is finished cleaning; Or set timing according to user's technological requirement at Programmable Logic Controller (21) and wash.
3. high-efficiency external filter core revolving drum positioning backwashing filter according to claim 2, it is characterized in that, Pressure gauge (22) is installed on the housing (18), also is provided with access hole (19), the waste liquid during maintenance in the equipment is discharged from discharging hole (N4, N5).
4. high-efficiency external filter core revolving drum positioning backwashing filter according to claim 3, it is characterized in that, the valve of filter stock entrance (N1), backwash sewage draining exit (N3), the upper configuration of discharging hole (N4, N5) is the double-acting type operated pneumatic valve, control by Programmable Logic Controller (21), the pneumatic actuator of Open valve is the double-acting type cylinder, when power failure or blowing-out fault appearred in filter, filter inlet and discharge valve door was in guarantor's position state and reports to the police.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601552 CN102078722B (en) | 2010-12-23 | 2010-12-23 | High-efficiency external filter core revolving drum positioning backwashing filter |
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| CN 201010601552 CN102078722B (en) | 2010-12-23 | 2010-12-23 | High-efficiency external filter core revolving drum positioning backwashing filter |
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| CN102078722A CN102078722A (en) | 2011-06-01 |
| CN102078722B true CN102078722B (en) | 2013-02-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101657028B1 (en) | 2013-03-14 | 2016-09-12 | 베올리아 워터 솔루션즈 앤드 테크놀러지스 써포트 | Rotary disc filter with automatic integrated backwash and chemical cleaning system |
| CN113232192A (en) * | 2021-04-14 | 2021-08-10 | 王荣 | Creeping type anti-blocking filter screen for regenerated ABS plastic granulator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362401A (en) * | 1993-12-14 | 1994-11-08 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning a filter apparatus |
| US6136202A (en) * | 1998-09-14 | 2000-10-24 | Foreman; Michael R. | Forced fluid induced backwash |
| CN201082371Y (en) * | 2007-08-20 | 2008-07-09 | 西玛(常州)通用设备有限公司 | Drum vacuum filter |
| CN201912830U (en) * | 2010-12-23 | 2011-08-03 | 北京华昌丰机电技术研究开发中心 | High-efficiency external-filtering filtering-core rotary-drum positioning and backwashing filter |
-
2010
- 2010-12-23 CN CN 201010601552 patent/CN102078722B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362401A (en) * | 1993-12-14 | 1994-11-08 | Aqua-Aerobic Systems, Inc. | Method and apparatus for cleaning a filter apparatus |
| US6136202A (en) * | 1998-09-14 | 2000-10-24 | Foreman; Michael R. | Forced fluid induced backwash |
| CN201082371Y (en) * | 2007-08-20 | 2008-07-09 | 西玛(常州)通用设备有限公司 | Drum vacuum filter |
| CN201912830U (en) * | 2010-12-23 | 2011-08-03 | 北京华昌丰机电技术研究开发中心 | High-efficiency external-filtering filtering-core rotary-drum positioning and backwashing filter |
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