CN107670376B - A kind of filtration system of independent Gravity Separation - Google Patents

A kind of filtration system of independent Gravity Separation Download PDF

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Publication number
CN107670376B
CN107670376B CN201611138002.2A CN201611138002A CN107670376B CN 107670376 B CN107670376 B CN 107670376B CN 201611138002 A CN201611138002 A CN 201611138002A CN 107670376 B CN107670376 B CN 107670376B
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filter
chemical industry
pressing
plate
valve
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CN107670376A (en
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王艳玮
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Fuzhou Heyuan Environmental Protection Technology Co., Ltd.
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Fuzhou Heyuan Environmental Protection Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/04Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/056Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/04Combinations of filters with settling tanks
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
    • G05B13/042Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators in which a parameter or coefficient is automatically adjusted to optimise the performance

Abstract

A kind of filtration system of independent Gravity Separation, it includes 1 belt filter press, 1 chamber type filter, 1 pressing filter, 1 extruding filter, 1 bactericidal device, 1 settling tank, 1 waste liquid pool, 1 collecting tank, 4 solid-holding ponds, 3 surge tanks, 6 feed pumps, 5 road Ge Huan devices and 15 valves, belt filter press, including rack, Gravity Separation area, expression separation area and drainage set, upper filter-pressing strap and lower filter-pressing strap use polyester material, and use twill.

Description

A kind of filtration system of independent Gravity Separation
Technical field
The invention belongs to chemical separating system, in particular to a kind of filtration system of independent Gravity Separation.
Background technique
Currently, the technical force of production of the separation system of chemicals is weak, production line automation degree is low, manual operation The dispersion of more, process, working environment difference fall behind production on the way, production process there are the problem of following points:
Current separation system, for chemicals slurry types it is more single, pipeline cannot be adjusted as needed in due course, Realize the processing to different slurries;Separation system separative efficiency is low, and automatic control degree is low, operator's manual operations efficiency Lowly;The adjusting and monitoring of certain parameters rely primarily on experienced operator's monitoring in production process, so that production information And process data cannot be accurate, cannot adjust in time.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of chemical separating systems, can allow for user as needed Pipeline is adjusted, Multiple Cycle has been used, is filtered more thorough.
To achieve the goals above, the technical solution of the present invention is as follows: a kind of filtration system of independent Gravity Separation comprising 1 belt filter press, 1 chamber type filter, 1 pressing filter, 1 extruding filter, 1 bactericidal device, 1 sedimentation Pond, 1 waste liquid pool, 1 collecting tank, 4 solid-holding ponds, 3 surge tanks, 6 feed pumps, 5 road Ge Huan devices and 15 valves, Be characterized in that: settling tank accommodates chemical industry slurry, and the chemical industry slurry after sedimentation is by settling bottom of pond portion in the effect of the first feed pump Lower to enter belt filter press, the chemical material after filters pressing is put into the first solid-holding pond by belt filter press, and the chemical industry filtrate of generation is logical It crosses the 6th feed pump and the 14th valve enters recycling Trunk Line and returns to settling tank, chemical industry filtrate (liquid is arranged at settling tank top, Chemical industry filtrate enters first by the second feed pump by the first valve and changes road device, adjusts first and changes road device, make chemical industry filtrate into Enter second to change road device or change road device into third, adjust second and change road device, so that chemical industry filtrate is entered waste liquid pool or enter the Two valves, after chemical industry filtrate passes through the second valve, into chamber type filter, the chemical industry filtrate of chamber type filter lower part enters recycling Trunk Line returns to settling tank, and filtered chemical material is put into the second solid-holding pond by chamber type filter, chamber type filter top Chemical industry filtrate enters the first surge tank by third valve, pass through under the drive after buffering by third feed pump the 4th valve into Enter third and change road device, adjust third and change road device, chemical industry filtrate enters the 5th valve or the 4th changes road device, and chemical industry filtrate passes through the Enter after five valves and squeeze filter, the chemical industry filtrate for squeezing filter lower part enters recycling Trunk Line by the 7th valve and returns Settling tank squeezes filter for filtered chemical material and is put into third solid-holding pond, and the chemical industry filtrate on top passes through the 8th valve Into the 4th commutator, the 4th commutator is adjusted, chemical industry filtrate enters bactericidal device or the 5th commutator, bactericidal device bottom Chemical industry filtrate after degerming by the 13rd valve enter the 5th commutator, adjust the 5th commutator, chemical industry filtrate enter The chemical industry filtrate of third surge tank or pressing filter, third surge tank is entered by the 5th feed pump and the 12nd valve Filtered chemical material is put into the 4th solid-holding pond, the chemical industry filter of pressure filtration motor spindle by pressing filter, pressing filter Liquid enters recycling Trunk Line by the 11st valve and returns to settling tank, and the chemical industry filtrate on pressing filter top enters the second buffering Tank, the liquid in the second surge tank are reusable chemical liquid, and a part of chemical liquid passes through the second buffering pot bottom Into collecting tank, a part of chemical liquid passes through the 9th valve, the tenth valve, the by the 4th feed pump as flushing liquor respectively Six valves and the 15th valve return to chamber type filter, pressing filter, squeeze filter and belt filter press, to realize To chamber type filter, pressing filter, the flushing for squeezing filter and belt filter press;
Belt filter press, including rack, Gravity Separation area, expression separation area and drainage set, Gravity Separation area, squeezing Disengagement zone and drainage set are mounted on the rack, and Gravity Separation area includes feed inlet, the first driving motor, the first tuningout dress It sets, support roller and filter bag, expression separation area include the second driving motor, third driving motor, prepressing device, upper filters pressing Band, lower filter-pressing strap, idler roller, discharge rolls, dehydration roll system, carrying roller, the second deviation correcting device and third deviation correcting device, liquid to be taken off Chemical industry slurry enters Gravity Separation area by feed inlet, and chemical industry slurry is sloughed most of chemical industry by gravity on filter bag and filtered Liquid, the first driving motor drive support roller rotation to drive filter bag cycle rotation;
Upper filter-pressing strap and lower filter-pressing strap use polyester material, and use twill;
Prepressing device is divide into upper part and lower part, and upper part includes upper lever arm and two rollers, and two rollers and upper lever arm turn Dynamic connection, upper lever arm one end and rack are pivotally connected, and the upper lever arm other end connects mandril, have spring inside mandril, to make upper boom Two roller elasticity of arm oppress upper filter-pressing strap upper surface, and lower part is divided to including lower lever arm and two rollers, two rollers and lower beam Arm rotation connection, lower lever arm are fixedly connected with rack, and two rollers of lower lever arm are contacted with lower filter-pressing strap lower surface, at upper and lower two Under the pressing effect divided, upper filter-pressing strap and lower filter-pressing strap are superimposed together.
The invention has the benefit that
1. using multiple filter devices, multiple changing road device and valve realizes processing and manufacturing to a variety of chemical industry slurries;
2. three recirculate, keep the filtering of waste liquid more thorough;
3. realizing each filter device auto-flushing by self-stripping system;
4. monitoring material position situation in real time, the generation of threadiness and block material is prevented;
5. realize Gravity Separation and filters pressing separation be implemented separately, extend the Gravity Separation time;
6. deviation correcting device combines tuningout and tensioning function so that each strainer will not roll release and sideslip, and can be real When adjust the tensioning degree of each strainer;
7. pressing filter have filter pressure big, good seal performance, continuous operation, full automatic working, in different chamber It is interior using different operating pressures the advantages that;
8. reducing the waste modified in bring efficiency repeatedly manually set and precision by fuzzy control not Accurately.
Detailed description of the invention
Fig. 1 is the filtration system schematic diagram of independent Gravity Separation of the invention;
Fig. 2 is the structural schematic diagram of belt filter press of the invention;
Fig. 3 is the structure chart of extruding filter of the invention;
Fig. 4 is the main view of pressing filter of the invention;
Fig. 5 is the side view of pressing filter of the invention;
The schematic diagram of fuzzy controller Fig. 6 of the invention.
Specific embodiment
The present invention will be further described below with reference to the accompanying drawings and embodiments.
The embodiment of the present invention is with reference to shown in Fig. 1-6.
A kind of filtration system of independent Gravity Separation comprising 1 belt filter press, 1 chamber type filter, 1 pressurization Filter, 1 extruding filter, 1 bactericidal device, 1 settling tank, 1 waste liquid pool, 1 collecting tank, 4 solid-holding ponds, 3 Surge tank, 6 feed pumps, 5 road Ge Huan devices and 15 valves, it is characterised in that: settling tank accommodates chemical industry slurry, after sedimentation Chemical industry slurry enters belt filter press by sedimentation bottom of pond portion under the action of the first feed pump, and belt filter press will be after filters pressing Chemical material is put into the first solid-holding pond, and the chemical industry filtrate of generation enters recycling supervisor by the 6th feed pump and the 14th valve Line returns to settling tank, and chemical industry filtrate (liquid is arranged at settling tank top, and chemical industry filtrate is entered by the first valve by the second feed pump First changes road device, adjusts first and changes road device, so that chemical industry filtrate is entered second and changes road device or change road device into third, adjusts second Road device is changed, so that chemical industry filtrate is entered waste liquid pool or enters the second valve, after chemical industry filtrate passes through the second valve, into box mistake Filter, the chemical industry filtrate of chamber type filter lower part enter recycling Trunk Line and return to settling tank, and chamber type filter is by filteredization Work material is put into the second solid-holding pond, and the chemical industry filtrate on chamber type filter top enters the first surge tank, buffering by third valve Entering third by passing through the 4th valve under the drive of third feed pump changes road device afterwards, adjusts third and changes road device, chemical industry filtrate into Enter the 5th valve or the 4th change road device, chemical industry filtrate, which passes through to enter after the 5th valve, squeezes filter, squeezes filter lower part Chemical industry filtrate by the 7th valve enter recycling Trunk Line return settling tank, squeeze filter filtered chemical material is put Enter third solid-holding pond, the chemical industry filtrate on top enters the 4th commutator by the 8th valve, adjusts the 4th commutator, chemical industry filtrate Into bactericidal device or the 5th commutator, the chemical industry filtrate of bactericidal device bottom is entered after degerming by the 13rd valve 5th commutator, adjusts the 5th commutator, and chemical industry filtrate enters third surge tank or pressing filter, the change of third surge tank Work filtrate enters pressing filter by the 5th feed pump and the 12nd valve, and pressing filter is by filtered chemical material It is put into the 4th solid-holding pond, the chemical industry filtrate of pressure filtration motor spindle enters recycling Trunk Line by the 11st valve and returns to sedimentation Pond, the chemical industry filtrate on pressing filter top enter the second surge tank, and the liquid in the second surge tank is reusableization Work liquid, a part of chemical liquid enter collecting tank by the second buffering pot bottom, and a part of chemical liquid is logical as flushing liquor The 4th feed pump is crossed to pass through the 9th valve, the tenth valve, the 6th valve and the 15th valve return chamber type filter respectively, add Pressure filter squeezes filter and belt filter press, with realize to chamber type filter, pressing filter, squeeze filter with And the flushing of belt filter press.
The system uses multiple filtration plant, effective filtering to chemical industry filtrate is realized;Road is changed provided with multiple Device and valve, so that user be allowed to adjust pipeline as needed;Main filtration cycle, recycling circulation and backwash is constituted to follow Ring three recirculates, and keeps the filtering of waste liquid more thorough, and can each filter device of auto-flushing, prevent chemical material from blocking The occurrence of device.
Wherein, flocculant is accommodated in settling tank makes chemical industry slurry be easy de- liquid.
Wherein, belt filter press, including rack, Gravity Separation area, expression separation area and drainage set, Gravity Separation Area, expression separation area and drainage set are mounted on the rack, and Gravity Separation area includes feed inlet, the first driving motor, first Deviation correcting device, support roller and filter bag, expression separation area include the second driving motor, third driving motor, prepressing device, on Filter-pressing strap, lower filter-pressing strap, idler roller, discharge rolls, dehydration roll system, carrying roller, the second deviation correcting device and third deviation correcting device, to de- The chemical industry slurry of liquid enters Gravity Separation area by feed inlet, and chemical industry slurry is sloughed most ofization by gravity on filter bag Work filtrate, the first driving motor drive support roller rotation to drive filter bag cycle rotation, and the first deviation correcting device passes through regulating roller tune It is had suffered the running route of strainer, filter bag is made to be in certain tensioning state and prevents its roll release, chemical industry slurry passes through gravity point From entering expression separation area behind area, be tensioned roller, dehydration roll, carrying roller and discharge rolls of upper filter-pressing strap and lower filter-pressing strap support to be formed Expression separation area, the second driving motor and third driving motor driving discharge rolls realize the continuous loop of upper filter-pressing strap and lower filter-pressing strap Around movement, chemical industry slurry enters the opening for being distributed in that filter-pressing strap and lower filter-pressing strap are formed, under the action of two prepressing devices Filter cake is preliminarily formed, filter cake sloughs extra chemical industry filtrate to form chemical material by dehydration roll system again, by discharging Enter the first solid-holding pond after roller, the second deviation correcting device and third deviation correcting device are laid filter-pressing strap and lower filter-pressing strap respectively, passed through Regulating roller adjusts the running route of filter bag, so that filter-pressing strap and lower filter-pressing strap is in certain tensioning state and prevents it de- Roller enters drainage set in the chemical industry filtrate that Gravity Separation area and expression separation area are sloughed, and the chemical industry filtrate in drainage set is returned Return settling tank.
Traditional filter press cannot achieve the independent control to Gravity Separation and filters pressing separation, and above-mentioned belt filter press is provided with Individual Gravity Separation area realizes being implemented separately for Gravity Separation and filters pressing separation, and individual Gravity Separation area can extend The Gravity Separation time effectively increases filters pressing effect to provide working foundation for the separation of filters pressing below;Deviation correcting device is by tuningout Combined with tensioning function so that each strainer will not roll release and sideslip, and the tensioning degree of each strainer can be adjusted in real time.
Wherein, dehydration roll system includes 5 dehydration rolls, will be laid in respectively in upper filter-pressing strap and lower filter-pressing strap, by upper pressure Strainer and lower filter-pressing strap, which squeeze, to be overlapped and forms S-shaped shape, wherein and the first dehydration roller diameter is 500mm, is located in lower filter-pressing strap, Second dehydration roller diameter is 400mm, is located in upper filter-pressing strap, and it is 360mm that third, which is dehydrated roller diameter, is located in lower filter-pressing strap, the Four dehydration roller diameters are 330mm, are located in upper filter-pressing strap, and the 5th dehydration roller diameter is 220mm, are located in lower filter-pressing strap.
The setting of above-mentioned dehydration roll system can make filter cake extruded while be sheared, and then reinforce dehydrating effect;5 The design of the diameter of dehydration roll realizes the change of gradient of pressure, prevents while filters pressing effective to filter cake due to initial stage slurry The phenomenon that aqueous higher caused slurry is run out of.
Wherein, upper filter-pressing strap and lower filter-pressing strap use polyester material, and use twill.
The adhesion strength of polyester material is 2.1N/m2, it is small to filter cake adhesion strength using the strainer of polyester material, make belt pressure It works with squeezing filtering function continuous effective.
Wherein, the top of upper filter-pressing strap upper surface is provided with multiple insufflation showerheads, filter-pressing strap in flushing, in lower filter-pressing strap The lower part of lower surface is provided with multiple insufflation showerheads, rinses lower filter-pressing strap, and insufflation showerhead uses flushing liquor to be sprayed, rushes Chemical industry filtrate after washing enters drainage set.
Above-mentioned flusher realizes the automatic cleaning of upper and lower filter-pressing strap, prevents the damage of strainer.
Prepressing device is divide into upper part and lower part, and upper part includes upper lever arm and two rollers, and two rollers and upper lever arm turn Dynamic connection, upper lever arm one end and rack are pivotally connected, and the upper lever arm other end connects mandril, have spring inside mandril, to make upper boom Two roller elasticity of arm oppress upper filter-pressing strap upper surface, and lower part is divided to including lower lever arm and two rollers, two rollers and lower beam Arm rotation connection, lower lever arm are fixedly connected with rack, and two rollers of lower lever arm are contacted with lower filter-pressing strap lower surface, at upper and lower two Under the pressing effect divided, upper filter-pressing strap and lower filter-pressing strap are superimposed together.
Wherein, chamber type filter is made of multiple filter boxs stacking, and jet pipe is arranged inside each filter box, movable plate, filter plate, determines Plate, rack and transmission device, jet pipe setting arranges multiple spouts on filter box top, jet pipe, flushing liquor is sprayed to filter plate, filters Plate has multiple, and movable plate, filter plate, fixed board are arranged in filter box from top to bottom, and movable plate and filter plate are arranged on the guide rail of rack, fixed Plate is fixed at the bottom of rack, and strainer, movable plate and filter plate are arranged on filter plate by transmission device and connects realization filter plate Linkage, movable plate is mobile to fixed board under the drive of transmission device and squeezes filter plate, in the process of running, between filter plate between Away from be it is equivalent, between filter box use metal contact seal, the contact surface between filter box occurs by certain external pressure Deformation, to make contact surface fit closely and fluid is prevented to pass through.
Wherein, chamber type filter is made of three filter box stackings, has filter aid in filter box.
Wherein, jet pipe is evenly distributed with multiple spray orifices, and flushing liquor is sprayed, and mixes with filter aid, in gravity and pressure Under the action of, mixed liquor flows to the exit of filter box through filter plate.
Wherein, it is provided with pressure gauge on each filter box, to measure the pressure of filter box, avoids the generation of leakage.
Wherein, according to the effective filtration area of filter plate, judge whether filter plate works normally, the effective filtration area A of filter plate It is to be calculate by the following formula to obtain,
In formula, W is the quality for the chemical industry filtrate filtered per hour, and γ rate of filtration coefficient of reliability, C is to test filtering velocity Degree, T are the working time, and F is filtering range of value;
Effectively filtering accounting △ is calculated,
In formula, A0The entire area of filter plate;
As 0.3 < △≤0.6, filter plate needs to clean;
As △≤0.3, filter plate is needed replacing.
Wherein, compared according to the power P of transmission device and current driving power, to judge that current transmission device is No normal work, the power P of transmission device are calculate by the following formula to obtain,
In formula, V is the movement speed of movable plate, and q is the unit weight of drive chain, and Λ is transmission device The center of both ends sprocket wheel is away from ω is the Friction drag coefficient of motion of chain, and G is filter plate weight, and μ is the transmission efficiency of transmission device, ηm For the mobile coefficient of friction of filter plate.
Wherein, squeezing filter includes sparge pipe, cylindrical shell, screw rod vane, driving motor and convergence plate, cylinder There is draining hole on shape housing central section, the top among cylindrical shell is arranged in sparge pipe, and sparge pipe is provided with multiple spray heads, For flushing liquor to be sprayed to cylindrical shell, the draining hole on cylindrical shell is rinsed, blocking draining hole is prevented, in cylinder Discharge port and feed inlet is arranged in shape shell both ends, and driving motor is arranged in discharge port one end, and discharge port is provided with baffle and moves Stationary ring net, sound looped network include determining ring plate and rotating ring piece, determine ring plate and are spaced apart from each other with rotating ring piece, have certain time of filtration, move Ring plate by rotating ring piece and determines the relative motion between ring plate, to change in the downward certain track eccentric motion of promotion of screw rod vane Work filtrate generates extrusion, to improve the effect that is separated by filtration of material, convergence plate is arranged there are two being total in cylindrical shell Intermediate bottom, two convergence plates have certain gradient, and form liquid outlet, and chemical industry filtrate is collected discharge.
Pressing filter includes driving motor, clutch, transmission shaft, dispensing head, ball bearing, left end cap, outer cylinder main body, close Cover plate, sealing spacer block, strainer, inner cylinder main body, drain pipe, packing seal, right end cap, roller bearing, outer cylinder support, support bottom Plate, collateral, discharge device for scraper and discharge box, driving motor is by clutch and is driven axis connection, transmission shaft and inner cylinder master Body removably connects, and dispensing head is mounted on inner cylinder main body one end, dispensing head be connected to by bracket it is fixed on left end cap, It is corresponding with each nozzle of outer cylinder main body, corresponding nozzle is dispersed on dispensing head, outer cylinder main body both ends are close by left end cap and right end cap Envelope, outer cylinder main body are equipped with seal cover board, sealing spacer block are provided between inner cylinder main body and outer cylinder main body, inner cylinder body surfaces are set There is strainer, strainer is supported plate by circumferential and radial unit wall surface and is divided into several filter elements, the wall surface of radial filter unit It is parallel with inner cylinder main center axis and between it is angled, have interchangeable unit filter inserts, mistake in filter element It filters unit and is equipped with drain pipe, inner cylinder main body two sides are equipped with ring body, are connected separately with left end shaft and right end outside the ring body of two sides Axis, left end shaft and right end axis are fixedly connected with the inner ring of ball bearing and roller bearing respectively, the outer ring of ball bearing and roller bearing It is fixedly connected respectively with left end cap and right end cap, right end cap offers feed inlet, and outer cylinder main body passes through collateral knot on outer cylinder support Structure is connect with support baseboard, is additionally provided with discharge device for scraper between outer cylinder main body and inner cylinder main body, will be on filter element Material scrapes and enters discharge box, and outer cylinder main body is provided with filtrate outlet.
Above-mentioned pressing filter have filter pressure big, good seal performance, continuous operation, full automatic working, in different cavity The advantages that interior is using different operating pressures.
Wherein, pressing filter is contacted with chemical material inner cylinder main body, strainer, dispensing head, drain pipe, scraper discharging dress It sets, discharge box is made of corrosion resistant stainless steel material, transmission shaft, ball bearing, left end cap, the outer cylinder not contacted with chemical material Main body, seal cover board, sealing spacer block, packing seal, right end cap, roller bearing, outer cylinder support, support baseboard and collateral by carbon Steel material is made.
Wherein, the filtration system of independent Gravity Separation further includes main control computer and sensor, and main control computer, which receives, to be come From the signal of sensor, and by the on-off of 15 valves of bus marco, the selection of 5 circulators, 6 feed pumps operating function Rate, chamber type filter transmission device driving power, the operating voltage of 3 driving motors of belt filter press, squeeze filtering The operating voltage of the driving motor of machine, the operating voltage of the driving motor of pressing filter.
Wherein, sensor includes speed probe, velocity sensor, flow sensor, pressure gauge, vibrating sensor and makes an uproar Sonic transducer, speed probe are mounted on belt filter press, squeeze on the driving motor of filter and pressing filter, be used for The revolving speed of driving motor is measured, velocity sensor is mounted on the movable plate of chamber type filter to measure its movement velocity, and flow velocity passes At the filtrate (liquid of sensor chamber type filter, for detecting the flow velocity of filtrate, pressure gauge is mounted on the filter box of chamber type filter, adds To measure pressure in the outer cylinder main body of pressure filter, vibrating sensor and noise transducer are mounted on the cylinder for squeezing filter To measure the mechanical oscillation signal for squeezing filter and pressing filter in the outer cylinder main body of shape shell and pressing filter And noise signal.
Wherein, main control computer has fuzzy control device and processor, and fuzzy control device includes difference engine, differential Device, defuzzification interface, output quantity conversion module, inference machine, knowledge base, speed probe by the belt filter press measured, squeeze The revolving speed of the driving motor of filter and pressing filter is supplied to difference engine, and the setting that difference engine inputs operator turns Speed subtracts each other to obtain error value E with measurement revolving speed, and error value E obtains error rate dE/dt, error value E and mistake by differentiator Poor change rate dE/dt is supplied to defuzzification interface, carries out blurring assignment to error value E and error rate dE/dt, respectively It is provided to blurring error amount ME and blurring error change value MEC, blurring error amount ME and blurring error change value MEC To inference machine, inference machine according in knowledge base input and output degree of membership vector value and reasoning from logic rule to blurring error Value ME and blurring error change value MEC carries out fuzzy reasoning and obtains fuzzy control quantity MU, and output quantity conversion module is by Fuzzy Control Amount MU processed is converted to practical control amount U, provides operating voltage to driving motor according to practical control amount U.
Wherein, fuzzy control device is programmable logic controller (PLC), the place of programmable logic controller (PLC) and main control computer It manages and is communicated between device using RS232.
Wherein, be blurred the process of assignment specifically: according to selection parameter PL, PB of the linguistic variable of operator, PM, PS, ZO, NS, NM, NB, BL respectively indicate positive super large, honest, center, it is just small, zero, bear in small, negative, bear big, negative super large, it is corresponding Fuzzy set-n ,-n+1 ..., 0 ..., n-1, n }, n=4;
Determine quantizing factor, ke=n/e, wherein, keFor error amount quantizing factor, e is the worst error value of measurement, kec= N/ec, kecFor error rate quantizing factor, ec is the worst error change rate of measurement,
If m≤keE≤m+1, m < n, then being blurred error amount ME is the k by rounding upeE;
If keE <-n, then being blurred error amount ME is-n;
If keE > n, then being blurred error amount ME is n;
If m≤kecE≤m+1, m < n, then being blurred error change value MEC is the k by rounding upecE;
If kecE <-n, then being blurred error change value MEC is-n;
If kecE > n, then being blurred error change value MEC is n.
Wherein, knowledge base includes database and rule base,
The fuzzy membership vector value of input, output variable is stored in database, this vector value is input, output quantity process The set of corresponding value after the discretizations such as corresponding domain then can be used as if corresponding domain is continuous as subordinating degree function, right In the fuzzy variable of input, subordinating degree function is stored in database, provides data to inference machine in fuzzy reasoning relationship.
Fuzzy rule is stored in rule base, fuzzy rule is the experience of operator's long-term accumulation and combines expertise On the basis of formed, expressed by the vocabulary of relevant logical relation, such as if-then, else, end, and, or etc..
The rapid setting that can effectively realize parameter automatically by fuzzy control reduces the change tape repeatedly manually set The inaccuracy of waste and precision in the efficiency come.
Wherein, uniform crossover in the circumferential direction of the cylindrical shell of filter is squeezed to be provided with N number of vibrating sensor and N number of make an uproar Sonic transducer, vibrating sensor machinery acquire vibration signal, noise transducer acquisition noise signal, by mechanical oscillation signal and Noise signal judgement squeezes the material position in the cylindrical shell of filter.
Wherein, the tool of the material position in the cylindrical shell of filter is squeezed by mechanical oscillation signal and noise signal judgement Steps are as follows for body:
Step 1, the collected road N mechanical oscillation signal and N road noise acoustical signal are filtered, remove garbage signal, obtains Take the road N mechanical oscillation signal curve and N road noise acoustical signal curve;
Step 2, the road N mechanical oscillation signal curve and N road noise acoustical signal curve are fitted and obtain i-th of mechanical oscillation Frequency function fizWith i-th of noise frequency function fic
Step 3, average mechanical vibration frequency function f is calculatedzAnd average noise frequency function fc, i=1,2 ..., N;
Step 4, sound level is calculated,
In formula, L is sound level intensities, and t is the time, and e is the truth of a matter of natural logrithm function, and lg is logarithmic function, and F () is material Between impact force function, He() is structural response function, and a is sound level weighting coefficient, σradSound radiation coefficient, ηsFor inside resistance Buddhist nun's coefficient, d are the cylindrical shell average thickness for squeezing filter, and Re expression takes real;
Step 5, the curve of sound level intensities L is drawn, and extracts envelope signal, form envelope curve and envelope signal is carried out Lower sample process carries out data compression;
Step 6, low-frequency reconfiguration is carried out to compressed data, obtains low-frequency reconfiguration signal;
Step 7, above-mentioned low-frequency reconfiguration signal is obtained by trained three layers of BP neural network with preparatory measurement Be respectively at 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% material position low-frequency reconfiguration signal carry out It compares, output squeezes the Realtime Level information of the cylindrical shell of filter.
The material position of cylindrical shell for squeezing filter is a macroparameter, real-time and accurately hold squeeze filter or The material position situation of change of pressing filter squeezes the load of filter or pressing filter for control, prevents threadiness and block The generation of shape material and the operation for stablizing whole system, it is particularly significant.
Embodiment described above only expresses one embodiment of the present invention, and but it cannot be understood as to this The limitation of invention scope.It should be pointed out that for those of ordinary skill in the art, in the premise for not departing from present inventive concept Under, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.

Claims (8)

1. a kind of filtration system of independent Gravity Separation comprising 1 belt filter press, 1 chamber type filter, 1 pressurizeed Filter, 1 extruding filter, 1 bactericidal device, 1 settling tank, 1 waste liquid pool, 1 collecting tank, 4 solid-holding ponds, 3 it is slow Rush tank, 6 feed pumps, 5 road Ge Huan devices and 15 valves, it is characterised in that: settling tank accommodates chemical industry slurry, the change after sedimentation Work slurry enters belt filter press by sedimentation bottom of pond portion under the action of the first feed pump, and belt filter press is by the change after filters pressing Work material is put into the first solid-holding pond, and the chemical industry filtrate of generation enters recycling Trunk Line by the 6th feed pump and the 14th valve Settling tank is returned to, chemical industry filtrate (liquid arranged at settling tank top, and chemical industry filtrate enters the by the second feed pump by the first valve One changes road device, adjusts first and changes road device, so that chemical industry filtrate is entered second and changes road device or change road device into third, adjusts second and change Road device makes chemical industry filtrate enter waste liquid pool or enters the second valve, after chemical industry filtrate passes through the second valve, into box filtering Machine, the chemical industry filtrate of chamber type filter lower part enter recycling Trunk Line and return to settling tank, and chamber type filter is by filtered chemical industry Material is put into the second solid-holding pond, and the chemical industry filtrate on chamber type filter top enters the first surge tank by third valve, after buffering Pass through the 4th valve under drive by third feed pump and enter third and change road device, adjusts third and change road device, chemical industry filtrate enters 5th valve the 4th changes road device, and chemical industry filtrate, which passes through to enter after the 5th valve, squeezes filter, squeezes filter lower part Chemical industry filtrate enters recycling Trunk Line by the 7th valve and returns to settling tank, squeezes filter and is put into filtered chemical material Third solid-holding pond, the chemical industry filtrate on top enter the 4th commutator by the 8th valve, adjust the 4th commutator, chemical industry filtrate into Enter bactericidal device or the 5th commutator, the chemical industry filtrate of bactericidal device bottom enters the by the 13rd valve after degerming Five commutators, adjust the 5th commutator, and chemical industry filtrate enters third surge tank or pressing filter, the chemical industry of third surge tank Filtrate enters pressing filter by the 5th feed pump and the 12nd valve, and pressing filter puts filtered chemical material Entering the 4th solid-holding pond, the chemical industry filtrate of pressure filtration motor spindle enters recycling Trunk Line by the 11st valve and returns to settling tank, The chemical industry filtrate on pressing filter top enters the second surge tank, and the liquid in the second surge tank is reusable chemical liquid Body, a part of chemical liquid enter collecting tank by the second buffering pot bottom, and a part of chemical liquid passes through the as flushing liquor Four feed pumps pass through the 9th valve, the tenth valve, the 6th valve and the 15th valve respectively and return to chamber type filter, pressurizeed Filter squeezes filter and belt filter press, to realize to chamber type filter, pressing filter, squeeze filter and band The flushing of formula filter press;
Belt filter press, including rack, Gravity Separation area, expression separation area and drainage set, Gravity Separation area, expression separation Area and drainage set are mounted on the rack, and Gravity Separation area includes feed inlet, the first driving motor, the first deviation correcting device, branch Roller and filter bag are supportted, expression separation area includes the second driving motor, third driving motor, prepressing device, upper filter-pressing strap, pushing Strainer, idler roller, discharge rolls, dehydration roll system, carrying roller, the second deviation correcting device and third deviation correcting device, the chemical industry slurry of liquid to be taken off Material enters Gravity Separation area by feed inlet, and chemical industry slurry is sloughed most of chemical industry filtrate by gravity on filter bag, the One driving motor drives support roller rotation to drive filter bag cycle rotation;
Upper filter-pressing strap and lower filter-pressing strap use polyester material, and use twill;
Prepressing device is divide into upper part and lower part, and upper part includes upper lever arm and two rollers, and two rollers and the rotation of upper lever arm connect It connects, upper lever arm one end and rack are pivotally connected, and the upper lever arm other end connects mandril, have spring inside mandril, to make lever arm Two roller elasticity oppress upper filter-pressing strap upper surface, and lower part is divided to including lower lever arm and two rollers, and two rollers and lower lever arm turn Dynamic connection, lower lever arm are fixedly connected with rack, and two rollers of lower lever arm are contacted with lower filter-pressing strap lower surface, two-part up and down Under pressing effect, upper filter-pressing strap and lower filter-pressing strap are superimposed together.
2. a kind of filtration system of independent Gravity Separation according to claim 1, it is characterised in that: the first deviation correcting device is logical The running route for crossing regulating roller adjustment filter bag, makes filter bag be in certain tensioning state and prevents its roll release, chemical industry slurry By entering expression separation area behind Gravity Separation area, upper filter-pressing strap and lower filter-pressing strap are tensioned roller, dehydration roll, carrying roller and discharging Roller supports to form expression separation area, and the second driving motor and third driving motor driving discharge rolls realize upper filter-pressing strap and lower filters pressing The continued circling campaign of band, chemical industry slurry enter the opening for being distributed in that filter-pressing strap and lower filter-pressing strap are formed, in two pre- press fittings Filter cake is preliminarily formed under the action of setting, filter cake sloughs extra chemical industry filtrate to form chemical industry object by dehydration roll system again Material, enters the first solid-holding pond after discharge rolls, and the second deviation correcting device and third deviation correcting device lay filter-pressing strap under respectively Filter-pressing strap is adjusted the running route of filter bag by regulating roller, filter-pressing strap and lower filter-pressing strap is made to be in certain tensioning state And its roll release is prevented, enter drainage set in the chemical industry filtrate that Gravity Separation area and expression separation area are sloughed, in drainage set Chemical industry filtrate returns to settling tank.
3. a kind of filtration system of independent Gravity Separation according to claim 2, it is characterised in that: dehydration roll system includes 5 A dehydration roll will be laid in respectively in upper filter-pressing strap and lower filter-pressing strap, and upper filter-pressing strap and lower filter-pressing strap are squeezed overlapping and shape At S-shaped shape, wherein the first dehydration roller diameter is 500mm, is located in lower filter-pressing strap, and the second dehydration roller diameter is 400mm, is located at In upper filter-pressing strap, it is 360mm that third, which is dehydrated roller diameter, is located in lower filter-pressing strap, and the 4th dehydration roller diameter is 330mm, is located at upper In filter-pressing strap, the 5th dehydration roller diameter is 220mm, is located in lower filter-pressing strap.
4. a kind of filtration system of independent Gravity Separation according to claim 1, it is characterised in that: chamber type filter is by more A filter box, which stacks, to be constituted, setting jet pipe, movable plate, filter plate, fixed board, rack and transmission device inside each filter box, jet pipe setting On filter box top, multiple spouts are arranged on jet pipe, flushing liquor is sprayed into filter plate, filter plate have it is multiple, movable plate, filter plate, fixed board from It is arranged in filter box under, movable plate and filter plate are arranged on the guide rail of rack, and fixed board is fixed at the bottom of rack, filter plate Upper setting strainer, movable plate and filter plate connect the linkage for realizing filter plate, drive of the movable plate in transmission device by transmission device It is lower mobile to fixed board and squeeze filter plate, in the process of running, the spacing between filter plate be it is equivalent, metal is used between filter box Contact sealing, makes the contact surface between filter box deform, so that contact surface be made to fit closely simultaneously by certain external pressure Fluid is prevented to pass through;Chamber type filter is made of three filter box stackings, has filter aid in filter box;Jet pipe is evenly distributed with multiple Spray orifice sprays flushing liquor, and mixes with filter aid, and under the action of gravity and pressure, mixed liquor flows to filter box through filter plate Exit.
5. a kind of filtration system of independent Gravity Separation according to claim 4, it is characterised in that: be arranged on each filter box There is pressure gauge, to measure the pressure of filter box, avoids the generation of leakage.
6. a kind of filtration system of independent Gravity Separation according to claim 5, it is characterised in that: wherein, according to filter plate Effective filtration area, judge whether filter plate works normally, the effective filtration area A of filter plate is to be calculate by the following formula to obtain,
In formula, W is the quality for the chemical industry filtrate filtered per hour, and γ rate of filtration coefficient of reliability, C is the experiment rate of filtration, T For the working time, F is filtering range of value;
Effectively filtering accounting △ is calculated,
In formula, A0The entire area of filter plate;
As 0.3 < △≤0.6, filter plate needs to clean;
As △≤0.3, filter plate is needed replacing;
Compared according to the power P of transmission device and current driving power, to judge the whether normal work of current transmission device To make, the power P of transmission device is calculate by the following formula to obtain,
In formula, V is the movement speed of movable plate, and q is the unit weight of drive chain, and Λ is transmission device both ends The center of sprocket wheel is away from ω is the Friction drag coefficient of motion of chain, and G is filter plate weight, and μ is the transmission efficiency of transmission device, ηmFor filter The mobile coefficient of friction of plate.
7. a kind of filtration system of independent Gravity Separation according to claim 1, it is characterised in that: squeezing filter includes Sparge pipe, cylindrical shell, screw rod vane, driving motor and convergence plate, cylindrical shell have draining hole on middle part, spray water The top among cylindrical shell is arranged in pipe, and sparge pipe is provided with multiple spray heads, for flushing liquor to be sprayed to cylindrical shell, The draining hole on cylindrical shell is rinsed, blocking draining hole is prevented, discharge port and charging are set at cylindrical shell both ends Mouthful, driving motor is arranged in discharge port one end, and discharge port is provided with baffle and sound looped network, sound looped network include determine ring plate with Rotating ring piece is determined ring plate and is spaced apart from each other with rotating ring piece, has certain time of filtration, and rotating ring piece is downward certain in the promotion of screw rod vane Track eccentric motion by rotating ring piece and determines the relative motion between ring plate, extrusion is generated to chemical industry filtrate, to improve object Material is separated by filtration effect, convergence plate altogether there are two, the bottom among cylindrical shell is set, and two convergence plates have centainly Gradient, and liquid outlet is formed, chemical industry filtrate is collected into discharge.
8. a kind of filtration system of independent Gravity Separation according to claim 1, it is characterised in that: pressing filter includes Driving motor, clutch, transmission shaft, dispensing head, ball bearing, left end cap, outer cylinder main body, seal cover board, sealing spacer block, strainer, Inner cylinder main body, drain pipe, packing seal, right end cap, roller bearing, outer cylinder support, support baseboard, collateral, discharge device for scraper And discharge box, driving motor are removably connect by clutch and transmission axis connection, transmission shaft with inner cylinder main body, dispensing head Be mounted on inner cylinder main body one end, dispensing head be connected to by bracket it is fixed on left end cap, it is corresponding with each nozzle of outer cylinder main body, Corresponding nozzle is dispersed on dispensing head, outer cylinder main body both ends are sealed by left end cap and right end cap, and outer cylinder main body is equipped with sealing Cover board is provided with sealing spacer block between inner cylinder main body and outer cylinder main body, inner cylinder body surfaces are equipped with strainer, and strainer is by circumferential direction and diameter Plate is supported to unit wall surface and is divided into several filter elements, and the wall surface of radial filter unit is parallel with inner cylinder main center axis It is angled between and, there are interchangeable unit filter inserts in filter element, filter element is equipped with drain pipe, inner cylinder Main body two sides are equipped with ring body, are connected separately with left end shaft and right end axis outside the ring body of two sides, left end shaft and right end axis respectively with Ball bearing is fixedly connected with the inner ring of roller bearing, and the outer ring of ball bearing and roller bearing is fixed with left end cap and right end cap respectively Connection, right end cap offer feed inlet, and outer cylinder main body is connect by collateral structure on outer cylinder support with support baseboard, outer cylinder main body It is additionally provided with discharge device for scraper between inner cylinder main body, the material on filter element is scraped and entered discharge box, outer cylinder Main body is provided with filtrate outlet;
Inner cylinder main body that pressing filter is contacted with chemical material, strainer, dispensing head, drain pipe, discharge device for scraper, discharge box It is made of corrosion resistant stainless steel material, transmission shaft, ball bearing, the left end cap, outer cylinder main body, sealing not contacted with chemical material Cover board, sealing spacer block, packing seal, right end cap, roller bearing, outer cylinder support, support baseboard and collateral by carbon steel material system At.
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