CN107233756A - The sheet frame continuous filter of automatic back-washing - Google Patents
The sheet frame continuous filter of automatic back-washing Download PDFInfo
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- CN107233756A CN107233756A CN201710504281.8A CN201710504281A CN107233756A CN 107233756 A CN107233756 A CN 107233756A CN 201710504281 A CN201710504281 A CN 201710504281A CN 107233756 A CN107233756 A CN 107233756A
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- filter
- plate
- automatic back
- washing
- chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
- B01D25/215—Construction of the filter plates, frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/30—Feeding devices ; Discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/30—Feeding devices ; Discharge devices
- B01D25/305—Feeding devices ; Discharge devices for discharging filtrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/325—Removal of the filter cakes counter-current flushing, e.g. by air bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/086—Regeneration of the filter using fluid streams co-current to the filtration direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/54—Computerised or programmable systems
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
A kind of sheet frame continuous filter of automatic back-washing, including feed cavity, filtering area and discharging chamber, feed cavity are divided into several small chambers, are not connected between each small chamber, and each small chamber has feed pipe and each one of waste material pipe, is automatically controlled respectively by inlet valve and waste vaive;When automatic back-washing, close first small chamber inlet valve, and open its waste vaive, the cleaning material of the discharging chamber passes through filter screen under pressure, cleans impurity, completes local area cleaning, now other small chamber normal filtrations, the backwash work of the small chamber of n-th is carried out successively, and to the last a small chamber is washed, and a backwash cycle terminates.The filter can be filtered uninterruptedly so that filtering with backwash can synchronously carry out, realize continuously filter, automatic back-washing.
Description
Technical field
The invention belongs to separation equipment technical field, it is related to a kind of equipment of separation of solid and liquid, more particularly to it is a kind of automatic anti-
The flame filter press washed.
Background technology
With the development of modern high technology, the enhancing of environmental consciousness, some equipments fallen behind are just to be replaced, in decades
Industrial filter uses sheet frame filter mostly, and sheet frame filter feature is:With low content of technology, filter quality can ensure, manually many, fixed
When pull away a prop, wash cloth, wasting that big, pollution is big, floor space is big.It is using process:Upper filter cloth, upper pressure folder are pressed from both sides between filter plate and filter frame
Tightly, filtering is started, filtrate enters through filter cloth by sheet frame and enters filter plate, flowed out by filter plate upper port, after certain time, filter cloth quilt
Impurity is blocked, and starts to pull away a prop, and stops filtering, release, sheet frame is separated, and proposes that filter cloth is cleaned in cloth washing machine, after washing
Dehydration, then press from both sides the process reused.
Existing general plate and frame filter press includes host machine part, hydraulic unit and electrical equipment, main frame by two crossbeams, its
Two ends are separately fixed at the two sides of thrust plate and hydraulic cylinder seat, constitute frame.Vertically shelve, be arranged in order on the crossbeam of left and right
Some filter chambers being made up of filter frame, filter plate, filter cloth;And can be moved along crossbeam as horizontal direction.Pressure strip is hinged with piston rod.
Movable, compression filter frame, filter plate are driven by hydraulic cylinder piston, reaches after hydraulic working pressure, rotational lock nut check is protected
Pressure.Turn off motor, you can fed filtration.Hydraulic unit is by hydraulic pressure auxiliary(Fuel tank and oil filter), hydraulic pump, valve, hydraulic cylinder
Constituted with pipeline etc..Electrical equipment gets control action.
The filter chamber of plate and frame filter press is made up of the filter plate and filter frame being alternately arranged.There is groove on the surface of filter plate, its protuberance
Position is used to supporting filter cloth.Have on the corner of filter frame and filter plate and complete passage is constituted after through hole, assembling, suspension can be passed through, washed
Wash water and draw filtrate.Plate, frame both sides respectively have handle rest on crossbeam, by pressing device pressure strip, frame.Between plate, frame
Filter cloth plays gasket seal.Suspension is pressed into filter chamber by charging pump, filter residue is formed on filter cloth, until full of filter chamber.
Filtrate through filter cloth and flow to sheet frame corner passage along filter plate groove, concentrates discharge.Filtering is finished, and can be passed through cleaning and be washed water washing
Filter residue.After washing, compressed air is also passed through sometimes, removes remaining cleaning solution.Then turn on filter press removal filter residue, cleaning filter
Cloth, pressure strip, frame, start subsequent work circulation again.
Plate and frame filter press is big or suspension of near incompression can be applicable for filter residue compressibility.Suitable suspension
Concentration of solid particles be generally less than 10%, operating pressure is generally 0.3~1.6 MPa, special up to 3 MPas or higher.
Filter area can increase and decrease with sheet frame number used.Sheet frame is generally square, a length of 200~2000 milli of inner edge of filter frame
Rice, frame thickness is 16~80 millimeters, and filter area is 1~1200 ㎡.The mode such as plate and frame hand power screw, electric screw and hydraulic pressure
Compress.The material manufacture such as plate and frame timber, cast iron, cast steel, stainless steel, polypropylene and rubber.
Therefore, existing plate and frame type filter-press is generally to compress filter frame, filter plate, is reached after hydraulic working pressure, you can charging
Filtering, then pressure strip, frame again, start subsequent work circulation, and single working cycles discontinuous operation, efficiency is low, cleans also not
It is convenient.
In the improvement for backwash, prior art is such as:CN03210995.4 is entitled《A kind of Horizontal self-washing filter》,
The backwash piston and filter core being sleeved in hollow shaft, backwash are provided with the filter housing being made up of tank body, protecgulum and bonnet
Piston is made up of left piston, right piston, coupling sleeve, sealing ring and seal sleeve, there is two sealing rings on the piston often held, close
Seal ring is slidably matched with the filter drum endoporus on filter core, and the leading screw of anti-piston walking, leading screw can be promoted by being equipped with the bottom of right piston
It is connected by torque limiter with deceleration unit, stroke limiting stop is installed in the front and back end of filter housing.Due in filter shell
Backwash piston and filter core are provided with vivo, stroke limiting stop is installed in the front and back end of filter casing, so once occurring debris
Clogging, backwash piston will repeatedly be rinsed to filter screen, and by outside filter residue discharge machine, so as to realize that filter is prolonged
Continuous work.
And for example CN201110351511.4, entitled《A kind of automatic backwash viscose filter》, cylindrical shape is installed in frame
Filter staving, filter staving two ends are respectively provided with preceding staving end cap and rear staving end cap, and push rod component is respectively fixed with thereon, filter
Machine staving is exported at rear staving end cap provided with viscose glue, provided with scrap rubber outlet, viscose glue import, filter staving at rear staving end cap
Interior to be provided with cylinder mould, cylinder mould two ends are connected with front and rear staving end cap, and catch net is fixed on cylinder mould surface by clamping plate, anchor ear, filter
Net is sandwiched between lining net and catch net, and lining net is sandwiched between cylinder mould and filter screen, and central tube two ends socket joint is in preceding staving end cap
In the hole slot of rear staving end cap central, backwash piston is located inside cylinder mould, is sleeved on central tube, and safety coupling is with slowing down
Machine is connected, and reductor is connected with motor.The filter is the automatic filtering system according to permeation filtration principle design, is used
PLC control technology, can automatically control, continuously work, automatic back-washing, automatic discharge.
In the improvement for press filtration backwash, prior art is such as:CN200620003556.7,《Increase type Horizontal counter
Wash viscose glue filter》, it reduces the axial direction when equipment is installed and extracted out, changes filter drum using the frame mode of three filter drums
Required space, improves the utilization rate of factory building, in equal installing space, can improve filtering traffic 40%;The spiral shell of filter drum filter opening
Spin line distribution mode, has disperseed abrasion of the filter opening to piston packing ring, had both extended the service life of filter screen, piston is reduced again
The abrasion of sealing ring.It includes shell, filter drum and piston, and stoste inlet pipe communicates with the inner chamber of filter drum, hollow piston axle and leading screw,
Nut is covered installed in two side ends, and leading screw connects through decelerator with motor, and filter drum is constituted by 3 sections, and 2-3 piston bush is mounted in hollow
On piston shaft, shell is arranged in the end cap of both sides, the filter opening on left piston sleeve, filter drum is housed by helix point between piston
Cloth.The utility model can be widely used for chemical fibre industry viscose glue stoste filter progress.
And for example:Flame filter press disclosed in CN105126402B, has served as filter net jam, and inlet outlet pressure differential reaches certain pressure
When need backwash, during cleaning filter screen, the setting in motion of piston 26 in filter bottom inlet chamber, piston 26 and the bottom of filter core filter plate 10
Slide in sealed states, when piston 26 is moved at filter plate glue-feeder, duplex openings are kept and two fluid through-holes to be filtered
Connect simultaneously and to fluid through-hole periphery to be filtered can be sealed, it is 0 that the now rear filter of filter, which is sewn on the enterprising glue laminated power of this filter plate, and preceding
Filter seam outlet glue laminated be normal condition, generally more than 0.5MPa, the clear liquid after filtering under pressure, reverses through filter screen
Wash the impurity on filter screen off and become scrap rubber and flow back into piston cavity, discharged by scrap rubber flexible pipe 203 outside machine, realize backwash filter screen
Effect.After piston 26 is moved through, filter screen it is clean and it is normal cross glue.
It is described above in the prior art, these equipment be applied to high ash content, fine granularity, highly viscous coal slime and tail coal
Dehydration, be also applied for the dehydration and filtering of cleaned coal and industrial chemicals.Weak point is mainly manifested in following aspects:Processing
Ability is small, and Batch Process, time of filter pressing is long, and body is heavy, and space-consuming is big, complex operation, and running cost is high, filter cloth consumption
Height, filter plate short life, maintenance capacity is big.It is above-mentioned either to illustrate less or use in the prior art in the design of hydraulic system
More general mechanical-hydraulic equipment, but these hydraulic system generally existings some following shortcoming:It is not provided with hydraulic system
The filter of system fluid, and field working conditions are many dusts and slurry body, easily enter people's hydraulic pipeline, and fluid is polluted,
Therefore, often there is whole system and individual other hydraulic cylinder can not normal work;The connecting pipe of system is suspended in the air, and
Fixed again without Duct fixing clamp, cause that whole system leakage point is more, vibration is big, noise is big, generation line fracture and leakage accident it is many,
Fault rate height, system job insecurity, reparation are difficult.Pressure gauge on hydraulic cylinder rodless cavity is not to use shock-proof pressure gauge, work
People is unfamiliar with hydraulic work system principle, system is blindly adjusted, and under hydraulic pressure itself percussion, cause pressure gauge complete
Portion is damaged, and pressure shows incorrect, also reduce further the positioning precision of hydraulic system, is caused between each filter plate of filter
Loosen and leak adhesive, these service efficiencies for all having had a strong impact on filter and automation mechanized operation.These particularly existing technologies, it is real
All it is not carried out in the case of uninterrupted filtering, realizing automatic back-washing, being all not belonging to continuous filtering truly in matter
Under automatic back-washing.
Based on this, the present invention proposes with reference to actual conditions and the structure of filter is improved, and carries on this basis
The technical concept for automatically controlling and carrying out backwash is gone out, the clean filtrate after being filtered using sheet frame filter is backwashed under a certain pressure
Filter material, cleans up the impurity adhered on filter material, reuses filter material.
The content of the invention
In order to solve the above problems, a kind of filter of automatic back-washing in the case of continuous filtering is proposed.Concrete technical scheme
It is as follows:
A kind of sheet frame continuous filter of automatic back-washing, including feed cavity, filtering area and discharging chamber, the feed cavity is divided into some
Do not connected between individual small chamber, each small chamber, each small chamber has feed pipe and each one of waste material pipe, respectively by inlet valve and waste vaive
Automatically control;The filtering area is made up of filter plate, and every piece of filter plate is hollow, and has one end open, and remaining three side sealing is closed, every two pieces
Press from both sides filter screen between filter plate, Open Side Down and upward adjacent for filter plate, and material is entered by the filter plate that Open Side Down when using, and is passed through
Filter screen enters adjacent filter plate, and the discharging chamber is exited into from the filter plate of opening upwards;The discharging chamber is the material filtered
Temporary storage area, and have control pressurer system, it is ensured that discharging chamber has certain pressure;When automatic back-washing, close first small
Chamber inlet valve, and its waste vaive is opened, the cleaning material of the discharging chamber passes through filter screen under pressure, cleans impurity, complete
Into local area cleaning, now other small chamber normal filtrations carry out the backwash work of the small chamber of n-th, to the last one successively
Small chamber is washed, and a backwash cycle terminates.
Further, in addition to glue inlet tube and sebific duct is gone out, the feed pipe connects glue inlet tube, and the waste material pipe connects plastic emitting
Pipe.
Further, when filter is filtered, each inlet valve of the feed cavity is opened, material is through Open Side Down
Filter plate enter the filter plates of opening upwards through filter screen, into discharging chamber, when the cavity pressure that discharges reaches setting value, connection discharging
The discharge valve of chamber is opened, and the material filtered enters lower road link, and the discharge valve can automatically adjust aperture, it is ensured that go out
Expect that cavity pressure is normal.
Further, when material impurity can be adhered on filter screen, during influence filtration yield, automatic back-washing is started.
Further, certain interval of time is set to define the influence filtration yield;Or, the filter plate that Open Side Down with
Material pressure difference in the filter plate of opening upwards defines the influence filtration yield when reaching set pressure differential.
Further, the feed cavity, filtering area and discharging chamber constitute main frame, and main frame from top to bottom, is followed successively by body
Cover plate, filter element body, intermediate plate;Filter element body is divided into superposed clear liquid groove and the cartridge groove positioned at bottom, cartridge groove
Proportional spacing is provided with several filter core filter plates, the spacing formation filter seam of front and rear adjacent filter core filter plate, preceding filter seam lower end and intermediate plate
On fluid through-hole to be filtered connection, upper end sealing, rear filter seam lower end is tightly connected with intermediate plate plate face, and upper end is connected with clear liquid groove,
Form the connectivity structure that interlocks.
Further, clear liquid groove and cartridge groove transition position are provided with inwall convex shoulder flange, and it is convex that body clip plate is arranged on inwall
On shoulder flange, the position of clear liquid groove and cartridge groove is separated, some grooves are provided with body clip plate by clear liquid groove and cartridge groove
Connection.
Further, end cover of filter element, filter core double threaded screw, nut, filter core filter plate are provided with cartridge groove;Two pieces of end cover of filter element
Between be connected by three row's filter core double threaded screws and nut up and down, if proportional spacing is provided between two pieces of end cover of filter element
Dry filter core filter plate, filter core filter plate is provided with mounting hole, and the body of rod of filter core double threaded screw passes through the mounting hole of filter core filter plate to filter
Core filter plate is installed.
Further, the control and backwash of the filter are automatically performed by PLC.
A kind of application method of the sheet frame continuous filter of automatic back-washing is also provided, comprised the following steps:
Filter plate is clipped after filter screen, is put into feed cavity, it is ensured that is not connected between each small chamber in feed cavity, is covered lid;
Start filtering, open each inlet valve of feed cavity, material enters opening upwards through the filter plate that Open Side Down through filter screen
Filter plate, into discharging chamber, when the cavity pressure that discharges reaches setting value, the discharge valve of connection discharging chamber is opened, and has been filtered
Material enters lower road link;
It can adhere to material impurity when being filled on certain time, filter screen, influence filtration yield, at this moment start automatic back-washing, close the
One small chamber inlet valve, and its waste vaive is opened, the cleaning material of the discharging chamber passes through filter screen, cleaned miscellaneous under pressure
Matter, completes local area cleaning, and now other small chamber normal filtrations carry out the backwash work of the small chamber of n-th, to the last successively
One small chamber is washed, and a backwash cycle terminates.
Beneficial effect:
1st, during use, automatic back-washing, without cleaning filter cloth of pulling away a prop;Save manpower(Work is dismounted without full-time filter).
2nd, uninterrupted filtering so that filtering and backwash can synchronously carry out, realize and continuously filter, automatic back-washing.
3rd, controlled, opportunity of backwash can as requested be automatically controlled, such as using PLC:Setting time, setting
Pressure differential.
4th, discharging chamber setting control pressurer system, it is ensured that the pressure of discharging chamber, it is ensured that the quality of filtering, while ensuring backwash
When pressure provide.
Brief description of the drawings
Fig. 1 is the sheet frame continuous filter structural representation of automatic back-washing of the present invention;
Fig. 2 is the filter process schematic diagram of the sheet frame continuous filter of automatic back-washing of the present invention;
Fig. 3 is schematic diagram when filter filtering area of the present invention is filtered;
When Fig. 4 is filter filtering area backwash of the present invention(First chamber backwash)Schematic diagram;
Fig. 5 is the structural representation of the feed cavity of the present invention;
Fig. 6 is structure assembling figure of the invention.
Fig. 7 constitutes structure chart for the electrical control communication of the present invention.
Fig. 8,9 for the present invention flame filter press main control circuit figure.
In figure:Feed cavity 100, filtering area 200, discharging chamber 300, inlet valve 101, waste vaive 102;Housing cover plate 1, the
One hexagon socket head cap screw 2, the first O-ring seal 3, filter element body 4, body clip plate 5, hexagon socket head cap screw 6, end cover of filter element 7, filter core
Double threaded screw 8, nut 9, filter core filter plate 10, intermediate plate 11, the second O-ring seal 12, polytetrafluoroethylene (PTFE) packing 13, six in second
Corner bolt 14, filter core side plate 15, glue inlet tube 16 goes out sebific duct 17.
Embodiment
The present invention is further illustrated by the following examples.
A kind of sheet frame continuous filter of automatic back-washing, including feed cavity 100, filtering area 200 and discharging chamber 300, it is described
100 points of feed cavity is several small chambers, is not connected between each small chamber, and each small chamber has feed pipe and each one of waste material pipe, point
Not automatically controlled by inlet valve 101 and waste vaive 102;The filtering area 200 is made up of filter plate, and every piece of filter plate is hollow, and is had
One end open, remaining three side sealing is closed, and presss from both sides filter screen between every two pieces of filter plates, and Open Side Down and upward adjacent for filter plate, when using
Material is entered by the filter plate that Open Side Down, enters adjacent filter plate by filter screen, from the filter plate of opening upwards exit into it is described go out
Expect chamber;The discharging chamber is the material temporary storage area filtered, and has control pressurer system, it is ensured that discharging chamber 300 has necessarily
Pressure;When automatic back-washing, first small chamber inlet valve 101 is closed, and opens its waste vaive 102, the discharging chamber 300
Cleaning material under pressure pass through filter screen, clean impurity, complete local area cleaning, now other small chamber normal filtrations,
The backwash work of the small chamber of n-th is carried out successively, and to the last a small chamber is washed, and a backwash cycle terminates.
When using 7 pairs of inlet valves and waste vaive, as shown in figure 5, during normal use material inlet valve 1.-be 7. all
Opening, waste vaive is Close All state;1. a number inlet valve is closed automatically during backwash, and 1. a number waste vaive is automatically opened up, instead
Wash beginning certain time after 1. a number waste vaive close automatically, 1. a number inlet valve automatically opens up normal filtration, and 2. number inlet valve is automatic
Close, 2. a number waste vaive is automatically opened up, and 2. a number waste vaive is closed automatically after certain time, and 2. a number inlet valve is automatically opened up, so
Automatic cleaning process is back and forth realized, and can continuously be used.
Further, in addition to glue inlet tube 16 and sebific duct 17 is gone out, the feed pipe connects glue inlet tube 16, the waste material Guan Lian
Pick out sebific duct 17.
Further, when filter is filtered, each inlet valve 101 of the feed cavity 100 is opened, material is through opening
The downward filter plate of mouth enters the filter plate of opening upwards through filter screen, into discharging chamber 300, when the pressure of discharging chamber 300 reaches setting
During value, the discharge valve of connection discharging chamber 300 is opened, and the material filtered enters lower road link, and the discharge valve can be certainly
Dynamic regulation aperture, it is ensured that discharging cavity pressure is normal.
Further, when material impurity can be adhered on filter screen, during influence filtration yield, automatic back-washing is started.
Further, certain interval of time is set to define the influence filtration yield;Or, the filter plate that Open Side Down with
Material pressure difference in the filter plate of opening upwards defines the influence filtration yield when reaching set pressure differential.
Further, the feed cavity, filtering area and discharging chamber constitute main frame, and main frame from top to bottom, is followed successively by body
Cover plate 1, filter element body 4, intermediate plate 11;4 points of filter element body is superposed clear liquid groove and the cartridge groove positioned at bottom, filter core
Proportional spacing is provided with several filter core filter plates 10, the spacing formation filter seam of front and rear adjacent filter core filter plate 10, preceding filter seam lower end in groove
Connected with the fluid through-hole to be filtered on intermediate plate 11, upper end sealing, rear filter seam lower end is tightly connected with the plate face of intermediate plate 11, upper end and
Clear liquid groove is connected, and forms the connectivity structure that interlocks.
Further, clear liquid groove and cartridge groove transition position are provided with inwall convex shoulder flange, and it is convex that body clip plate 5 is arranged on inwall
On shoulder flange, the position of clear liquid groove and cartridge groove is separated, some grooves are provided with body clip plate 5 by clear liquid groove and cartridge groove
Connection.
Further, end cover of filter element 7, filter core double threaded screw 8, nut 9, filter core filter plate 10 are provided with cartridge groove;Two pieces of filters
Be connected between core end cap 7 by three row's filter core double threaded screws 8 and nut 9 up and down, it is uniform between two pieces of end cover of filter element 7 between
Away from several filter core filter plates 10 are provided with, filter core filter plate 10 is provided with mounting hole, and the body of rod of filter core double threaded screw 8 is filtered through filter core
The mounting hole of plate 10 is installed to filter core filter plate 10.
Further, the control and backwash of the filter are automatically performed by PLC.
A kind of application method of the sheet frame continuous filter of automatic back-washing is also provided, comprised the following steps:
Filter plate is clipped after filter screen, is put into feed cavity, it is ensured that is not connected between each small chamber in feed cavity, is covered lid;
Start filtering, open each inlet valve of feed cavity, material enters opening upwards through the filter plate that Open Side Down through filter screen
Filter plate, into discharging chamber, when the cavity pressure that discharges reaches setting value, the discharge valve of connection discharging chamber is opened, and has been filtered
Material enters lower road link;
It can adhere to material impurity when being filled on certain time, filter screen, influence filtration yield, at this moment start automatic back-washing, close the
One small chamber inlet valve, and its waste vaive is opened, the cleaning material of the discharging chamber passes through filter screen, cleaned miscellaneous under pressure
Matter, completes local area cleaning, and now other small chamber normal filtrations carry out the backwash work of the small chamber of n-th, to the last successively
One small chamber is washed, and a backwash cycle terminates.
The technical parameter of the sheet frame continuous filter of automatic back-washing:
Appearance and size:1600*600*1600 maximum number of backwashes:60 times/hour
Filter area:2.4m2-5m2Maximum working pressure (MWP):2MPa
Maximum differential pressure:1 MPa viscose glue imports:DN80 PN1.6
Viscose glue is exported:DN80 PN1.6 scrap rubbers are exported:DN 40 PN1.6
The control and backwash of filter are completed by PLC
PLC electric control systems and circuit, as Figure 7-9.
Applicable cases by inspection information and according to domestic and international PLC in actual production, the present invention selects Siemens
Serial S7-300PLC is used as controller.Siemens S7-300 PLC in the present invention in have following performance:(1)S7-300 is certainly
Body has the ability of very strong anti-interference anti-vibrating and impact, particularly under the separation of solid and liquid operating mode of bad environments, even more has
Superpower anti-pollution ability and vibration resistance;(2)S7-300 has up to a hundred abundant sentence instructions, its programming software step7
Support a variety of programming languages;Can be the module and network settings parameter that are configured in the application of filter system of the present invention;
(3)Using the structure of integrated core bus, when being installed in frame more than 8 signaling modules, if the filter of the present invention
When backwashing system needs, by installing extension frame the hardware configuration of backwashing system can be made particularly flexible.Filter of the present invention
The hardware of control system mainly includes SIEMENS PLC, detection device, the performer at scene etc..Wherein PLC is equipped with power supply mould
Block PS3075A, CPU315-2DP module, digital quantity input and output mould (DI/DO), analog input and output module (AI/AO) and
Ethernet communication module CP343-1, is communicated by communication module with host computer or industrial computer IPC.
The present invention goes out user program according to the technical flow design of filter, in the memory for writing PLC, and electrical control cubicles are powered
Afterwards, PLC operating system is started working, and after its system program self diagnosis fault-free, bring into operation user program, PLC RUN
Lamp is bright, hereafter with regard to round scanning filter program.The state of entering apparatus is read in by input module first, then computing user
Program, draws after correct result, then drives output device by output module, is so gradually completing automatically controlling for filter
Process, while in order to realize that simple to operate and safety uses touch screen technology.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of sheet frame continuous filter of automatic back-washing, including feed cavity, filtering area and discharging chamber, it is characterised in that:It is described
Feed cavity is divided into several small chambers, is not connected between each small chamber, and each small chamber has feed pipe and each one of waste material pipe, respectively by
Inlet valve and waste vaive are automatically controlled;The filtering area is made up of filter plate, and every piece of filter plate is hollow, and has one end open, remaining
Three side sealing is closed, and presss from both sides filter screen between every two pieces of filter plates, and Open Side Down and upward adjacent for filter plate, and material is by Open Side Down when using
Filter plate enter, adjacent filter plate is entered by filter screen, the discharging chamber is exited into from the filter plate of opening upwards;The discharging chamber
It is the material temporary storage area filtered, and has control pressurer system, it is ensured that discharging chamber has certain pressure;Work as automatic back-washing
When, first small chamber inlet valve is closed, and its waste vaive is opened, the cleaning material of the discharging chamber is under pressure through filter
Net, cleans impurity, completes local area cleaning, and now other small chamber normal filtrations carry out the backwash work of the small chamber of n-th successively
Make, to the last a small chamber is washed, and a backwash cycle terminates.
2. a kind of sheet frame continuous filter of automatic back-washing according to claim 1, it is characterised in that:Also include glue inlet tube
With go out sebific duct, the feed pipe connects glue inlet tube, and the waste material pipe connects out sebific duct.
3. a kind of sheet frame continuous filter of automatic back-washing according to claim 1, it is characterised in that:When filter is carried out
During filtering, each inlet valve of the feed cavity is opened, material passes through filter screen through the filter plate that Open Side Down and enters opening upwards
Filter plate, into discharging chamber, when the cavity pressure that discharges reaches setting value, the discharge valve of connection discharging chamber is opened, the thing filtered
Material enters lower road link, and the discharge valve can automatically adjust aperture, it is ensured that discharging cavity pressure is normal.
4. a kind of sheet frame continuous filter of automatic back-washing according to claim 1, it is characterised in that:When meeting is attached on filter screen
Material impurity, during influence filtration yield, starts automatic back-washing.
5. a kind of sheet frame continuous filter of automatic back-washing according to claim 4, it is characterised in that:One section of setting interval
Time defines the influence filtration yield;Or, the material pressure in the filter plate of the filter plate that Open Side Down and opening upwards is poor
The influence filtration yield is defined when reaching set pressure differential.
6. a kind of sheet frame continuous filter of automatic back-washing according to claim 1, it is characterised in that:The feed cavity,
Filtering area and discharging chamber constitute main frame, and main frame from top to bottom, is followed successively by housing cover plate (1), filter element body (4), intermediate plate
(11);Filter element body (4) is divided into superposed clear liquid groove and the cartridge groove positioned at bottom, if proportional spacing is provided with cartridge groove
Dry filter core filter plate (10), the spacing of front and rear adjacent filter core filter plate (10) is formed on filter seam, preceding filter seam lower end and intermediate plate (11)
Fluid through-hole to be filtered connection, upper end sealing, rear filter seam lower end is tightly connected with intermediate plate (11) plate face, upper end and clear liquid groove company
It is logical, form the connectivity structure that interlocks.
7. the sheet frame continuous filter of a kind of automatic back-washing according to claim 6, it is characterised in that clear liquid groove and filter core
Groove transition position is provided with inwall convex shoulder flange, and body clip plate (5) is arranged on inwall convex shoulder flange, by clear liquid groove and cartridge groove
Position is separated, and connects clear liquid groove with cartridge groove provided with some grooves in body clip plate (5).
8. the sheet frame continuous filter of a kind of automatic back-washing according to claim 6, it is characterised in that be provided with cartridge groove
End cover of filter element (7), filter core double threaded screw (8), nut (9), filter core filter plate (10);Between two pieces of end cover of filter element (7) above and below
Three row's filter core double threaded screws (8) and nut (9) are connected, and proportional spacing is provided with some between two pieces of end cover of filter element (7)
Individual filter core filter plate (10), filter core filter plate (10) is provided with mounting hole, and the body of rod of filter core double threaded screw (8) passes through filter core filter plate (10)
Mounting hole filter core filter plate (10) is installed.
9. according to a kind of sheet frame continuous filter of any described automatic back-washings of claim 1-8, it is characterised in that:The mistake
The control and backwash of filter are automatically performed by PLC.
10. a kind of application method of the sheet frame continuous filter of automatic back-washing as described in claim 1-9 is any, including it is as follows
Step:
Filter plate is clipped after filter screen, is put into feed cavity, it is ensured that is not connected between each small chamber in feed cavity, is covered lid;
Start filtering, open each inlet valve of feed cavity, material enters opening upwards through the filter plate that Open Side Down through filter screen
Filter plate, into discharging chamber, when the cavity pressure that discharges reaches setting value, the discharge valve of connection discharging chamber is opened, and has been filtered
Material enters lower road link;
It can adhere to material impurity when being filled on certain time, filter screen, influence filtration yield, at this moment start automatic back-washing, close the
One small chamber inlet valve, and its waste vaive is opened, the cleaning material of the discharging chamber passes through filter screen, cleaned miscellaneous under pressure
Matter, completes local area cleaning, and now other small chamber normal filtrations carry out the backwash work of the small chamber of n-th, to the last successively
One small chamber is washed, and a backwash cycle terminates.
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CN201710504281.8A CN107233756A (en) | 2017-06-28 | 2017-06-28 | The sheet frame continuous filter of automatic back-washing |
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CN201710504281.8A CN107233756A (en) | 2017-06-28 | 2017-06-28 | The sheet frame continuous filter of automatic back-washing |
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CN107875701A (en) * | 2017-12-20 | 2018-04-06 | 靖江市华晟重金属防控有限公司 | A kind of sewage treatment unit plate |
CN109621505A (en) * | 2018-12-06 | 2019-04-16 | 徐宝海 | A kind of thickener efficient operation control method and high-efficiency concentrator |
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CN109621505B (en) * | 2018-12-06 | 2024-05-28 | 徐宝海 | Efficient operation control method of concentrator and efficient concentrator |
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Application publication date: 20171010 |