CN110201445A - A kind of the sour water automatic backwashing filter and its application method of pollution abatement - Google Patents

A kind of the sour water automatic backwashing filter and its application method of pollution abatement Download PDF

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Publication number
CN110201445A
CN110201445A CN201910442750.7A CN201910442750A CN110201445A CN 110201445 A CN110201445 A CN 110201445A CN 201910442750 A CN201910442750 A CN 201910442750A CN 110201445 A CN110201445 A CN 110201445A
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CN
China
Prior art keywords
water
solenoid valve
recoil
sewage
module
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.)
Pending
Application number
CN201910442750.7A
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Chinese (zh)
Inventor
杜会龙
尹水天
奚杰
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.)
Jiangsu Tianyu Petrochemical Metallurgy Equipment Co Ltd
Original Assignee
Jiangsu Tianyu Petrochemical Metallurgy Equipment 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.)
Filing date
Publication date
Application filed by Jiangsu Tianyu Petrochemical Metallurgy Equipment Co Ltd filed Critical Jiangsu Tianyu Petrochemical Metallurgy Equipment Co Ltd
Priority to CN201910442750.7A priority Critical patent/CN110201445A/en
Publication of CN110201445A publication Critical patent/CN110201445A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • B01D29/60Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor integrally combined with devices for controlling the 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
    • B01D29/60Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/606Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
    • 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
    • B01D37/00Processes of filtration
    • B01D37/04Controlling the filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D37/00Processes of filtration
    • B01D37/04Controlling the filtration
    • B01D37/046Controlling the filtration by pressure measuring

Abstract

The invention discloses a kind of sour water automatic backwashing filters of pollution abatement, aim to solve the problem that existing filter can not displace the sour water in filter when handling sour water, sour water is discharged directly among groundwater net after recoil is completed, the technical issues of resulting in environmental pollution, its key points of the technical solution are that including rack, filtering tank, water inlet pipe and outlet pipe, one end of water inlet pipe is provided with sewage inlet, outlet pipe is provided with sewage outlet close to one end of sewage inlet, sewage inlet is connected with inlet water solenoid valve, water inlet pipe is connected with backwash control assembly, backwashing control assembly includes replacement module and recoil module;Replacement module includes displacement mouth, replaces solenoid valve and the pure water pipe of high pressure;Recoil module includes recoil mouth, water outlet solenoid valve, recoil solenoid valve and high pressure recoil water pipe.Reach and the sour water in filter has been replaced before recoil, to reduce the effect that sour water is discharged into groundwater net from sewage draining exit.

Description

A kind of the sour water automatic backwashing filter and its application method of pollution abatement
Technical field
The present invention relates to waste water filtering technical fields, more specifically, it relates to which a kind of sour water of pollution abatement is automatically anti- Flush filter.
Background technique
Backwash filter is widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power, city water Field, such as industrial wastewater, the filtering of recirculated water, the regeneration of emulsion, waste oil filtration treatment, the continuous casting water system of metallurgy industry System, blast furnace water system, hot rolling high-pressure water descaling system are a kind of advanced, efficient and easy-operating filter devices.
The Chinese patent of existing Publication No. CN102500148A, discloses a kind of self-cleaning mechanical filter, filter It is made of filter core and cylinder, filter core is set in the filter chamber of cylinder, and cylinder body bottom is equipped with the intake antrum with water inlet, cylinder side Wall is equipped with water outlet, and water inlet is successively connected to water outlet through intake antrum, filter core, filter chamber, and it is curved to be equipped with recoil in intake antrum Head, recoil elbow connect the elbow that recoils in rotation and connect intake antrum and state of filter element with state of filter element or in rotation, and recoil elbow Connect the recoil outlet outside intake antrum.Filter core is set to be respectively turned on intake antrum and recoil elbow using recoil rotating elbow, it is real respectively The normal filtration and automatically cleaning filter core function of existing filter.
But existing filter can not displace the sour water in filter when handling sour water, in filter Inside recoil tends to vary with solid particle after completing and is expelled among groundwater net together, results in the pollution of environment, therefore needs Improve.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of sour water automatic backflushing of pollution abatement Filter is washed, has and the sour water in filter is replaced before recoil, be discharged into ground from sewage draining exit to reduce sour water The lower network of rivers, reduces the advantage of acid pollution.
To achieve the above object, the present invention provides the following technical scheme that
A kind of sour water automatic backwashing filter of pollution abatement, including rack, filtering tank, water inlet pipe and outlet pipe, it is described into The bottom end of filtering tank, the top of the outlet pipe setting filtering tank is arranged in water pipe;One end of the water inlet pipe is provided with sewage Water inlet, the outlet pipe are provided with sewage outlet close to one end of sewage inlet, the sewage inlet be connected with into Water solenoid valve, the water inlet pipe are connected with backwash control assembly, and the backwash control assembly includes for will be in filtering tank The replacement module and clean recoil module is carried out to filtering tank inside that sour water is replaced;
The replacement module includes:
Displacement mouth of the water inlet pipe far from sewage inlet one end is set, and the displacement mouth is connected with displacement solenoid valve;With And
The pure water pipe of high pressure being connect with the displacement solenoid valve;
The recoil module includes:
The recoil mouth of water outlet tube end is set, and the one end of water inlet pipe far from sewage inlet is arranged in the recoil mouth;
The water outlet solenoid valve of the sewage outlet is set and the recoil solenoid valve of the recoil mouth is set;And
The high pressure recoil water pipe being connect with the recoil solenoid valve.
By using above-mentioned technical proposal, replaces mouth and input clean tap water into filter, so that inside filter chamber Sour water be displaced filtering tank and by sewage outlet export, thus prevent sour water recoil complete after by direct emission Enter to cause in underground pipe network the pollution of water body.
Further, filter chamber is provided in the filtering tank, is provided with filter core in the filter chamber, the filter chamber with Water inlet pipe communicates, and communicates inside the filter core with outlet pipe, the filter chamber bottom is provided with sewage draining exit, the sewage outfalls setting There is blowoff electromagnetic valve.
By using above-mentioned technical proposal, the setting of filter chamber and filter core is convenient for some solid particles progress in sour water Separation, to filter sour water into filter core inside by solid particle choked flow in filter chamber and be exported by outlet pipe.
Further, it is provided with pressure test device on the water inlet pipe and outlet pipe, the pressure test device connects It is connected to PLC controller, the PLC controller is connect with backwash control assembly, and the PLC controller carrys out owner pressure difference for receiving The signal of detection device transmission simultaneously controls backwash control assembly work by signal.
By using above-mentioned technical proposal, the setting of pressure test device carries out convenient for the pressure difference to outlet pipe and water inlet pipe Detection, it is more to be attached to cartridge surface for surface solid particle when pressure difference reaches preset value, thus needs to recoil to filter core Surface is cleaned, to guarantee going on smoothly for filtering.
Further, the sewage outlet is provided with acidity-basicity tester, and the acidity-basicity tester and PLC are controlled Device communication connection processed.
By using above-mentioned technical proposal, the setting of acidity-basicity tester is sour convenient for the sewage that sewage outlet is discharged Basicity is detected, so that the displacement solenoid valve of displacement mouth is closed in time when pH value reaches preset value, to reduce The waste of pure water, in turn ensures the full implementation of displacement, has saved water resource.
Further, hand-operated forced starting module is provided in the PLC controller, the hand-operated forced starting module is used Control assembly is backwashed in force start.
By using above-mentioned technical proposal, when PLC controller breaks down or front-end detection device can not work It waits and drives hand-operated forced starting module, pressure recoils to filter core, to guarantee that filtering is able to maintain work.
Further, along it, axially sliding is arranged with irony wiper ring on the filter core lateral wall, and the filter core bottom end is set It is equipped with the limit plate for preventing irony wiper ring from deviating from;The filtering tank lateral wall is provided with drive cylinder, the driving oil The absorbent module for attracting irony wiper ring is provided on the piston rod of cylinder, the absorbent module is connect with PLC controller, is used In attraction irony wiper ring and follow piston rod mobile.
By using above-mentioned technical proposal, the setting of paster wiper ring is convenient for wiping cartridge surface by sliding, The setting of drive cylinder and electromagnet is convenient for carrying out attracting that irony is driven to clean to paster wiper ring from filtering tank lateral wall Ring is moved up and down along the piston rod of drive cylinder, realizes wiping and cleaning to cartridge surface.
Further, the PLC controller is internally connected with the absorption and control module for regulating magnet magnetic force size.
By using above-mentioned technical proposal, the big minor adjustment electromagnetism by control electric current is convenient in the setting of absorption and control module The size of ferromagnetic power, so as to according to circumstances adjust the size of magnetic force.
A kind of application method of the sour water automatic backwashing filter applied to above-mentioned pollution abatement, including following step It is rapid:
S1, identification operating mode;Operating mode includes:
Mode 1: pressure difference control;
Mode 2: time control;
S2, pressure test device detection/time timing, reach PLC controller preset value;
S3, driving replacement module work:
S31, inlet water solenoid valve is closed, open displacement solenoid valve and is kept for one end time;
S32, displacement solenoid valve and water outlet solenoid valve are closed;
S4, driving backwash module work:
S41, recoil solenoid valve is opened;
S42, driving absorption and control module, so that electromagnet energization band is magnetic, PLC controller controls drive cylinder along filtering tank Axially reciprocating;
S43, it successively opens blowoff electromagnetic valve and is kept for a period of time be then shut off;
S44, recoil solenoid valve is closed;
S5, inlet water solenoid valve and water outlet solenoid valve are opened, continues to be filtered sewage.
By using above-mentioned technical proposal, the trigger signal as PLC controller, control are controlled by pressure difference control and time It makes different solenoid valves to open to realize and replace the sour water inside filtering tank, has achieved the effect that pollution abatement.It sets Alternatively afterwards the filter core in filtering tank recoil and wipe by paster wiper ring, to play filter core clean Effect, the cleaning for filter core of being more convenient for.
Further, in step S31, displacement solenoid valve is opened, further includes following steps:
S311, acidity-basicity tester detect the pH value for the sewage that water outlet solenoid valve is discharged and are transferred to PLC control Device;
S312, PLC controller send a signal to displacement solenoid valve when the pH value detected is more than preset value, and control is set Change solenoid valve closing.
By using above-mentioned technical proposal, sewage outlet is exported by acidity-basicity tester sewage pH value into Row detection, to save water resource, subtracts consequently facilitating in time closing the solenoid valve for replacing mouth after sour water displacement is completed The small waste of clean water.
Further, further include following steps before step S3:
S2 ', hand-operated forced starting module is pressed, hand-operated forced starting module issues working signal and gives backwash control assembly, into Row forces recoil.
By using above-mentioned technical proposal, the setting of hand-operated forced starting module be convenient for PLC controller break down with And front-end detection plant failure and backwash control assembly by manually controlling force start when trigger signal can not be sent Realize recoil, ensure that filtering tank is at normal operating conditions.
In conclusion the invention has the following advantages:
1, the technology matched using replacement module and recoil module are added on water inlet pipe, to generate to filtering tank inside Sour water replaced, to prevent sour water from entering the effect that groundwater net pollutes;
2, using the technology detected in sewage outlet setting acidity-basicity tester to the sewage of draining, to generate It closes displacement valve in time when sewage pH value is lower than preset value, reduces the effect of clean water waste;
3, it is inhaled using the irony wiper ring of wall slip on the outside of recoil module and filter core by the absorbent module that drive cylinder drives Draw the mobile technology to clear up, cleans thorough effect to generate convenient for filter core.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the sour water automatic backwashing filter of pollution abatement in embodiment;
Fig. 2 is in embodiment for showing the structural block diagram of PLC controller control planning;
Fig. 3 is in embodiment for showing the schematic diagram of structure inside filter chamber;
Fig. 4 is in embodiment for showing the structural block diagram of absorption and control module.
In figure: 1, rack;11, PLC controller;111, hand-operated forced starting module;1111, hand push button;1112, signal Sending module;112, absorption and control module;1121, it switchs;1122, power supply adaptor;1123, potentiometer;2, filtering tank;21, Filter chamber;211, filter core;2111, limit plate;212, sewage draining exit;2121, blowoff electromagnetic valve;3, water inlet pipe;31, wastewater influent Mouthful;311, inlet water solenoid valve;3111, high-pressure sewage pipeline;4, outlet pipe;41, sewage outlet;411, water outlet solenoid valve; 4111, sour water outlet conduit;412, acidity-basicity tester;5, control assembly is backwashed;51, replacement module;511, mouth is replaced; 512, solenoid valve is replaced;513, the pure water pipe of high pressure;52, recoil module;521, recoil mouth;522, recoil solenoid valve;523, high Pressure recoil water pipe;6, pressure test device;7, irony wiper ring;8, drive cylinder;81, piston rod;82, absorbent module.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment:
A kind of sour water automatic backwashing filter of pollution abatement, referring to Fig.1 comprising rack 1, filtering tank 2,3 and of water inlet pipe Outlet pipe 4, filtering tank 2 are provided with 6 groups of 2 column, and the two sides of water inlet pipe 3 and outlet pipe 4 are distributed in by parallel connection, due to two column settings Identical, Gu Tuzhong only shows that a column are illustrated, thus 1 column, 6 filtering tanks are shown in figure.Filtering tank 2 is arranged in water inlet pipe 3 Bottom end middle position is simultaneously fixed by connecting flange, and outlet pipe 4 is arranged the top middle position of filtering tank 2 and passes through connecting flange It is fixed.Sour water inputs in filtering tank 2 filtering for passing through filtering tank 2 from water inlet pipe 3, and solid particle stays in filtering tank 2, and sour water is logical Outlet pipe 4 is crossed to be discharged outside filtering tank 2.
Referring to Fig.1, one end of water inlet pipe 3 is provided with sewage inlet 31, and sewage inlet 31 is connected with inlet water solenoid valve 311, inlet water solenoid valve 311 is air-operated solenoid valve, and 311 one end of inlet water solenoid valve is connect with sewage inlet 31, the other end and height Sewage conduct 3111 is pressed to connect, control high pressure sour water inputs in entire filter plant.Outlet pipe 4 close to sewage inlet 31 one End is provided with sewage outlet 41, and sewage outlet 41 is connect with sour water outlet conduit 4111, and sour water outlet conduit 4111 will be sour Water is discharged into reactor or container.
Referring to Figures 1 and 2, water inlet pipe 3 is connected with backwash control assembly 5, and backwash control assembly 5 includes being used for mistake Sour water is replaced in filter tank 2 replacement module 51 and to carrying out clean recoil module 52 inside filtering tank 2.
Referring to Figures 1 and 2, replacement module 51 includes: that displacement mouth of the water inlet pipe 3 far from 31 one end of sewage inlet is arranged in 511, the pure water pipe 513 of high pressure that displacement mouth 511 is connected with displacement solenoid valve 512 and connect with displacement solenoid valve 512.Displacement Solenoid valve 512 is high-pressure pneumatic solenoid valve, and the tap water after the pure connection of water pipe 513 pressurization of high pressure is inputted by displacement mouth 511 Clean tap water cements out the sour water in each filtering tank 2 by clean water, and the water after displacement passes through sewage outlet 41 discharges.
Referring to Figures 1 and 2, recoil module 52 includes: the recoil mouth 521 that 4 end of outlet pipe is arranged in, is arranged to go out in sewage The water outlet solenoid valve 411 at the mouth of a river 41 and be arranged in recoil mouth 521 recoil solenoid valve 522 and with recoil solenoid valve 522 connect High pressure recoil water pipe 523.The one end of water inlet pipe 3 far from sewage inlet 31, water outlet solenoid valve 411 is arranged in recoil mouth 521 For high-pressure pneumatic solenoid valve, high pressure recoil water pipe 523 connects pressurization pure water, and high pressure water on the inside of filtering tank 2 to recoiling, by heap Long-pending solid particle rinses.
Referring to Figures 1 and 2, pressure test device 6, water inlet pipe 3 and outlet pipe 4 are provided on water inlet pipe 3 and outlet pipe 4 On be welded with detection pipe, have pressure test device 6 by flanged joint in detection pipe.Pressure test device 6 is connected by electric wire There is PLC controller 11, PLC controller 11 is fixed in rack 1 by strut.PLC controller 11 is controlled by electric wire and backwash Component 5 processed connects, and PLC controller 11 is used to receive the signal from the transmission of pressure test device 6 and is controlled by signal and recoiled Wash the work of control assembly 5.When pressure difference signal is more than preset value, the control backwash control assembly 5 of PLC controller 11 starts Work is rinsed filtering tank 2.
Referring to Figures 1 and 2, sewage outlet 41 is provided with acidity-basicity tester 412, and acidity-basicity tester 412 is PH detector, the probe of acidity-basicity tester 412 are plugged in sewage outlet 41, and acidity-basicity tester 412 and PLC are controlled Device 11 processed communicates to connect, and acidity-basicity tester 412 detects the sewage pH value at 41 conveying of sewage outlet, and will Result after detection is sent to PLC controller 11, is handled by PLC controller 11.
Referring to Figures 1 and 2, hand-operated forced starting module 111, hand-operated forced starting module are provided in PLC controller 11 111 include hand push button 1111 and signal transmitting module 1112.1111 driving signal sending module 1112 of hand push button, signal hair The interrupt signal for sending module 1112 to send a force start to backwash control assembly 5.The interrupt signal of force start is preferential Grade is most strong, and force start backwashes control assembly 5, and hand-operated forced starting module 111 backwashes control assembly for force start 5。
Referring to Fig. 3, it is provided with filter chamber 21 in filtering tank 2, filtering tank 2 is made of high strength titanium alloy, and filter chamber 21 is Hollow cavity is arranged inside filtering tank 2.Filter core 211 is provided in filter chamber 21, filter core 211 is that metal wedge winds silk screen Filter core 211, filter core 211 are wound tubulose by wire mesh, and filter core 211 is closed at one end, and the other end is integrally formed with fixation Plate, fixed plate are bolted in filtering tank 2.
Referring to Fig. 3, the filter chamber 21 of filtering tank 2 is communicated with water inlet pipe 3, and 211 inside of filter core is communicated with outlet pipe 4, is passed through Filter core 211 obstructs solid particle in filter chamber 21.21 bottom of filter chamber is provided with sewage draining exit 212, sewage draining exit 212 and filtering Chamber 21 communicates, and sewage draining exit 212 is provided with blowoff electromagnetic valve 2121, and blowoff electromagnetic valve 2121 is pneumatic high-voltage solenoid valve.
Referring to Fig. 3, along it, axially sliding is arranged with irony wiper ring 7,7 outside of irony wiper ring on 211 lateral wall of filter core Wall is arranged with rubber protecting jacket, and the internal diameter of irony wiper ring 7 is identical as the outer diameter of filter core 211, and 211 bottom end of filter core, which is provided with, to be used for The limit plate 2111 for preventing irony wiper ring 7 from deviating from, limit plate 2111 are bolted on 211 bottom end of filter core.
Referring to Fig. 3,2 lateral wall of filtering tank is provided with drive cylinder 8, and the hydraulic pump of drive cylinder 8 passes through PLC controller 11 On-off is controlled, drive cylinder 8 is axially arranged along filtering tank 2 and is fixed by welding in 2 outside of filtering tank, and along 2 axis of filtering tank To flexible.The absorbent module 82 for attracting irony wiper ring 7, absorbent module 82 are provided on the piston rod 81 of drive cylinder 8 For electromagnet, absorbent module 82 is connect with PLC controller 11, for attracting irony wiper ring 7 and following piston rod 81 mobile.
Referring to Fig. 4, PLC controller 11 is internally connected with the absorption and control module 112 for regulating magnet magnetic force size, Absorption and control module 112 includes switch 1121, power supply adaptor 1122 and potentiometer 1123, and electromagnet passes through electric wire and potentiometer 1123 connections, the on-off of 11 control switch 1121 of PLC controller, potentiometer 1123 are used to adjust the size of electric current in circuit, change The size of time-dependent current and then the size of regulating magnet magnetic force.
A kind of application method of the sour water automatic backwashing filter applied to above-mentioned pollution abatement, steps are as follows:
S1, identification operating mode;Operating mode includes:
Mode 1: pressure difference control, pressure difference control is i.e. using pressure difference signal as the signal of triggering recoil control assembly;
Mode 2: time control, pressure difference control is i.e. using time signal as the signal of triggering recoil control assembly;
S2, the detection of pressure test device 6/or in 11 internal time timing of PLC controller, and will test resulting value and preset value It is compared, when reaching 11 preset value of PLC controller;
S3, driving replacement module 51 work:
S31, inlet water solenoid valve 311 is closed, stops inputting sour water into filtering tank 2, and open displacement solenoid valve 512 to filter Inside input clean water is simultaneously kept for one end time until sour water is all displaced;
S32, the input for closing the displacement stopping clean water of solenoid valve 512 and water outlet solenoid valve 411 stop the defeated of filter interior water Out;
S4, driving backwash module work:
S41, open recoil solenoid valve 522 so that high pressure water from recoil 521 input filter of mouth inside, and make clean water from The injection outward of 211 inside of filter core provides a pressure difference outside from 211 inside of filter core, thus by the solid on 211 surface of filter core Particle flushing falls off;
S42, driving absorption and control module 112, so that electromagnet energization band is magnetic, PLC controller 11 controls 8 edge of drive cylinder 2 axially reciprocating of filtering tank, electromagnet absorption paster wiper ring follow drive cylinder 8 to be axially moved along filter core 211 to filter core 211 surfaces are wiped;
S43, successively open blowoff electromagnetic valve 2121 and kept for a period of time be then shut off so that solid granulates with water from row Dirty mouth 212 is discharged;
S44, recoil solenoid valve 522 is closed, the high pressure that cutting recoil mouth 521 provides reshuffles water;
S5, inlet water solenoid valve 311 and water outlet solenoid valve 411 are opened, continues to be filtered sewage.
In step S31, displacement solenoid valve 512 is opened, further includes following steps:
S311, acidity-basicity tester 412 are detected and are transferred to the pH value for the sewage that water outlet solenoid valve 411 is discharged PLC controller 11, the control when sewage PH value that the detection device of soda acid detects is higher than preset value of PLC controller 11;
S312, PLC controller 11 send a signal to displacement solenoid valve 512 when the pH value detected is more than preset value, Control replacement module 51, which closes and opens recoil module 52, to recoil.
Further include following steps before step S3:
S2 ', hand-operated forced starting module 111 is pressed, hand-operated forced starting module 111 issues the working signal for forcing to rinse to anti- Control assembly 5 is rinsed, pressure recoil is carried out.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. a kind of sour water automatic backwashing filter of pollution abatement, including rack (1), filtering tank (2), water inlet pipe (3) and go out Water pipe (4), water inlet pipe (3) setting is on the bottom end of filtering tank (2), the top of outlet pipe (4) setting filtering tank (2); It is characterized by: one end of the water inlet pipe (3) is provided with sewage inlet (31), the outlet pipe (4) is close to wastewater influent One end of mouth (31) is provided with sewage outlet (41), and the sewage inlet (31) is connected with inlet water solenoid valve (311), described Water inlet pipe (3) be connected with backwash control assembly (5), the backwash control assembly (5) include for will in filtering tank (2) acid The replacement module (51) and carry out clean recoil module (52) to filtering tank (2) is internal that water is replaced;
The replacement module (51) includes:
Displacement mouth (511) in the water inlet pipe (3) far from sewage inlet (31) one end is set, and the displacement mouth (511) is even It is connected to displacement solenoid valve (512);And
The pure water pipe of high pressure (513) being connect with displacement solenoid valve (512);
The recoil module (52) includes:
Recoil mouth (521) in outlet pipe (4) end is set, recoil mouth (521) setting water inlet pipe (3) far from sewage into The one end at the mouth of a river (31);
It is arranged electric in the recoil of recoil mouth (521) in the water outlet solenoid valve (411) of the sewage outlet (41) and setting Magnet valve (522);And
High pressure recoil water pipe (523) being connect with recoil solenoid valve (522).
2. the sour water automatic backwashing filter of pollution abatement according to claim 1, it is characterised in that: the filtering tank (2) it is provided with filter chamber (21), is provided with filter core (211) in the filter chamber (21), the filter chamber (21) and water inlet pipe in (3) it communicating, is communicated inside the filter core (211) with outlet pipe (4), filter chamber (21) bottom is provided with sewage draining exit (212), The sewage draining exit (212) is provided with blowoff electromagnetic valve (2121).
3. the sour water automatic backwashing filter of pollution abatement according to claim 2, it is characterised in that: the water inlet pipe (3) and on outlet pipe (4) it is provided with pressure test device (6), the pressure test device (6) is connected with PLC controller (11), the PLC controller (11) connect with backwash control assembly (5), and the PLC controller (11) is for receiving from pressure The signal of poor detection device (6) transmission simultaneously controls backwash control assembly (5) work by signal.
4. the sour water automatic backwashing filter of pollution abatement according to claim 3, it is characterised in that: the sewage goes out The mouth of a river (41) is provided with acidity-basicity tester (412), and the acidity-basicity tester (412) communicates with PLC controller (11) Connection.
5. the sour water automatic backwashing filter of pollution abatement according to claim 4, it is characterised in that: the PLC control It is provided with hand-operated forced starting module (111) on device (11) processed, the hand-operated forced starting module (111) is anti-for force start It rinses control assembly (5).
6. the sour water automatic backwashing filter of pollution abatement according to claim 2, it is characterised in that: the filter core (211) along it, axially sliding is arranged with irony wiper ring (7) on lateral wall, and filter core (211) bottom end is provided with for preventing The limit plate (2111) of irony wiper ring (7) abjection;Filtering tank (2) lateral wall is provided with drive cylinder (8), the driving The absorbent module (82) for attracting irony wiper ring (7), the absorbent module are provided on the piston rod (81) of oil cylinder (8) (82) it is connect with PLC controller (11), for attracting irony wiper ring (7) and following piston rod (81) mobile.
7. the sour water automatic backwashing filter of pollution abatement according to claim 6, it is characterised in that: the PLC control Device (11) processed is internally connected with the absorption and control module (112) for regulating magnet magnetic force size.
8. a kind of user of the sour water automatic backwashing filter applied to pollution abatement described in any one of 1-7 claim Method, it is characterised in that: include the following steps:
S1, identification operating mode;Operating mode includes:
Mode 1: pressure difference control;
Mode 2: time control;
S2, pressure test device (6) detection/time timing, reach PLC controller (11) preset value;
S3, driving replacement module (51) work:
S31, inlet water solenoid valve (311) are closed, open displacement solenoid valve (512) and is kept for one end time;
S32, displacement solenoid valve (512) and water outlet solenoid valve (411) are closed;
S4, driving backwash module work:
S41, recoil solenoid valve (522) is opened;
S42, driving absorption and control module (112), so that electromagnet energization band is magnetic, PLC controller (11) control driving oil Cylinder (8) is along filtering tank (2) axially reciprocating;
S43, blowoff electromagnetic valve (2121) are successively opened and are kept for a period of time be then shut off;
S44, recoil solenoid valve (522) is closed;
S5, inlet water solenoid valve (311) and water outlet solenoid valve (411) are opened, continues to be filtered sewage.
9. the application method of the sour water automatic backwashing filter of pollution abatement according to claim 8, it is characterised in that: In step S31, displacement solenoid valve (512) is opened, further includes following steps:
S311, acidity-basicity tester (412) are detected and are transmitted to the pH value for the sewage that water outlet solenoid valve (411) is discharged Give PLC controller (11);
S312, PLC controller (11) send a signal to displacement solenoid valve when the pH value detected is more than preset value (512), control displacement solenoid valve (512) is closed.
10. the application method of the sour water automatic backwashing filter of pollution abatement according to claim 8, feature exist In: further include following steps before step S3:
S2 ', it presses hand-operated forced starting module (111), hand-operated forced starting module (111) issues working signal and gives backwash control Component (5) processed, carries out pressure recoil.
CN201910442750.7A 2019-05-25 2019-05-25 A kind of the sour water automatic backwashing filter and its application method of pollution abatement Pending CN110201445A (en)

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