CN107670393B - A kind of Pressure Filter System of chemical industry slurry - Google Patents
A kind of Pressure Filter System of chemical industry slurry Download PDFInfo
- Publication number
- CN107670393B CN107670393B CN201611166547.4A CN201611166547A CN107670393B CN 107670393 B CN107670393 B CN 107670393B CN 201611166547 A CN201611166547 A CN 201611166547A CN 107670393 B CN107670393 B CN 107670393B
- Authority
- CN
- China
- Prior art keywords
- filter
- chemical industry
- pressing
- main body
- cylinder main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/31—Other construction details
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Filtration Of Liquid (AREA)
Abstract
A kind of Pressure Filter System of chemical industry slurry, 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, pressing filter includes driving motor, clutch, transmission shaft, dispensing head, ball bearing, left end cap, outer cylinder main body, seal cover board, seal spacer block, strainer, inner cylinder main body, drain pipe, packing seal, right end cap, roller bearing, outer cylinder support, support baseboard, it is collateral, discharge device for scraper, discharge box, speed reducer and lubricating arrangement.
Description
Technical field
The invention belongs to chemical separating system, in particular to a kind of Pressure Filter System of chemical industry slurry.
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 Pressure Filter System of chemical industry slurry 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；
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；
Pressing filter further includes speed reducer and lubricating arrangement, and speed reducer is arranged between driving motor and clutch, subtracts
The rated power of fast machine is 5Kw, and output torque 50500Nm, lubricating arrangement is hand oil pump.
Beneficial effects of the present invention:
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. reduced by fuzzy control modifying repeatedly of manually setting wasted in bring efficiency and precision it is inaccurate
Really.
Detailed description of the invention
Fig. 1 is the Pressure Filter System schematic diagram of chemical industry slurry 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 Pressure Filter System of chemical industry slurry 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.
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, pressing filter further includes speed reducer and lubricating arrangement, speed reducer setting driving motor and clutch it
Between, the rated power of speed reducer is 5Kw, and output torque 50500Nm, lubricating arrangement is hand oil pump.
Wherein, which further includes main control computer and sensor, and main control computer receives the signal from sensor, and
By the on-off of 15 valves of bus marco, the selection of 5 circulators, the running power of 6 feed pumps, chamber type filter biography
The driving power of dynamic device, the operating voltage of 3 driving motors of belt filter press squeeze the work of the driving motor of filter
Voltage, 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 then can be used as subordinating degree function if corresponding domain is continuous after the discretizations such as corresponding domain, for
The fuzzy variable of input, subordinating degree function are stored in database, provide 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 is provided with N number of vibrating sensor and N number of noise in the circumferential direction of the outer cylinder main body of pressing filter
Sensor, vibrating sensor machinery acquire vibration signal, and noise transducer acquisition noise signal by mechanical oscillation signal and is made an uproar
Acoustical signal judges the material position in the outer cylinder main body of pressing filter.
Wherein, the specific of the material position in the outer cylinder main body of pressing filter is judged by mechanical oscillation signal and noise signal
Steps are as follows:
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 outer cylinder main body average thickness of pressing 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, exports the Realtime Level information of the outer cylinder main body of pressing filter.
The material position of the outer cylinder main body of pressing filter is a macroparameter, real-time and accurately holds and squeezes filter or add
The material position situation of change of pressure filter squeezes the load of filter or pressing filter for control, prevents threadiness and bulk
The generation of 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 Pressure Filter System of chemical industry slurry 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；
Pressing filter includes driving motor, clutch, transmission shaft, dispensing head, ball bearing, left end cap, outer cylinder main body, sealing cover
Plate, 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, for driving motor by clutch and transmission axis connection, transmission shaft and inner cylinder main body can
The connection of disassembly, dispensing head are mounted on inner cylinder main body one end, dispensing head be connected to by bracket it is fixed on left end cap, and it is outer
Each nozzle of cylinder main body is corresponding, and corresponding nozzle is dispersed on dispensing head, and outer cylinder main body both ends are sealed by left end cap and right end cap, outside
Cylinder main body is equipped with seal cover board, and sealing spacer block is provided between inner cylinder main body and outer cylinder main body, and inner cylinder body surfaces are equipped with filter
Net, strainer are supported plate by circumferential and radial unit wall surface and are divided into several filter elements, the wall surface of radial filter unit with it is interior
Cylinder main center axis it is parallel and between it is angled, have interchangeable unit filter inserts in filter element, filtering is single
Member is equipped with drain pipe, and inner cylinder main body two sides are equipped with ring body, left end shaft and right end axis are connected separately with outside the ring body of two sides, left
End axis and right end axis be fixedly connected respectively with the inner ring of ball bearing and roller bearing, the outer ring of ball bearing and roller bearing respectively with
Left end cap is fixedly connected with right end cap, and right end cap offers feed inlet, and outer cylinder main body passes through collateral structure on outer cylinder support and branch
Bottom plate connection is supportted, discharge device for scraper is additionally provided between outer cylinder main body and inner cylinder main body, by the material scraper on filter element
Out and enter discharge box, outer cylinder main body is provided with filtrate outlet；
Pressing filter further includes speed reducer and lubricating arrangement, and speed reducer is arranged between driving motor and clutch, speed reducer
Rated power be 5Kw, output torque 50500Nm, lubricating arrangement is hand oil pump.
2. a kind of Pressure Filter System of chemical industry slurry according to claim 1, it is characterised in that: pressing filter and change
The inner cylinder main body of work material contact, strainer, dispensing head, drain pipe, discharge device for scraper, discharge box is by corrosion resistant stainless steel
Material is made, transmission shaft, ball bearing, left end cap, outer cylinder main body, seal cover board, the sealing spacer block, filler not contacted with chemical material
It sealing, right end cap, roller bearing, outer cylinder support, support baseboard and collateral is made of carbon steel material.
3. a kind of Pressure Filter System of chemical industry slurry according to claim 1, it is characterised in that: belt filter press includes
Rack, Gravity Separation area, expression separation area and drainage set, Gravity Separation area, expression separation area and drainage set installation
On the rack, Gravity Separation area includes feed inlet, the first driving motor, the first deviation correcting device, support roller and filter bag, squeezing
Disengagement zone include the second driving motor, third driving motor, prepressing device, upper filter-pressing strap, lower filter-pressing strap, idler roller, discharge rolls,
The chemical industry slurry of dehydration roll system, carrying roller, the second deviation correcting device and third deviation correcting device, liquid to be taken off enters gravity by feed inlet
Disengagement zone, chemical industry slurry are sloughed most of chemical industry filtrate by gravity on filter bag, and the first driving motor drives support roller
Rotation drives filter bag cycle rotation, and the first deviation correcting device is adjusted the running route of filter bag by regulating roller, made at filter bag
In certain tensioning state and its roll release is prevented, chemical industry slurry enters expression separation area, upper filter-pressing strap after passing through Gravity Separation area
It supports to form expression separation area be tensioned roller, dehydration roll, carrying roller and discharge rolls of lower filter-pressing strap, the second driving motor and third
Driving motor drives discharge rolls to realize the continued circling campaign of upper filter-pressing strap and lower filter-pressing strap, and chemical industry slurry, which enters, is distributed in pressure
The opening that strainer and lower filter-pressing strap are formed, preliminarily forms filter cake under the action of two prepressing devices, filter cake passes through dehydration roll again
It is and then sloughs extra chemical industry filtrate to form chemical material, the first solid-holding pond, the second tuningout dress is entered after discharge rolls
It sets and lays filter-pressing strap and lower filter-pressing strap respectively with third deviation correcting device, the running route of filter bag is adjusted by regulating roller, is made
Upper filter-pressing strap and lower filter-pressing strap are in certain tensioning state and prevent its roll release, slough in Gravity Separation area and expression separation area
Chemical industry filtrate enter drainage set, chemical industry filtrate in drainage set returns to settling tank.
4. a kind of Pressure Filter System of chemical industry slurry 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.
5. a kind of Pressure Filter System of chemical industry slurry 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.
6. a kind of Pressure Filter System of chemical industry slurry according to claim 1, it is characterised in that: the system further includes master
Control computer and sensor, main control computer receives the signal from sensor, and by the on-off of 15 valves of bus marco,
The selection of 5 circulators, the running power of 6 feed pumps, chamber type filter transmission device driving power, belt filter press
3 driving motors operating voltage, squeeze the operating voltage of the driving motor of filter, the driving motor of pressing filter
Operating voltage.
7. a kind of Pressure Filter System of chemical industry slurry according to claim 6, it is characterised in that: main control computer has
Fuzzy control device and processor, fuzzy control device include difference engine, differentiator, defuzzification interface, output quantity conversion module,
Inference machine, knowledge base, speed probe by the belt filter press measured, squeeze the driving motor of filter and pressing filter
Revolving speed be supplied to difference engine, difference engine subtracts each other the setting speed that operator inputs and measurement revolving speed to obtain error value E, accidentally
Difference E obtains error rate dE/dt by differentiator, and error value E and error rate dE/dt are supplied to defuzzification interface,
Blurring assignment is carried out to error value E and error rate dE/dt, blurring error amount ME is respectively obtained and blurring error becomes
Change value MEC, blurring error amount ME and blurring error change value MEC are supplied to inference machine, and inference machine is according in knowledge base
Input and output degree of membership vector value and reasoning from logic rule carry out blurring error amount ME and blurring error change value MEC
Fuzzy reasoning obtains fuzzy control quantity MU, and fuzzy control quantity MU is converted to practical control amount U by output quantity conversion module, according to reality
Border control amount U provides operating voltage to driving motor.
8. a kind of Pressure Filter System of chemical industry slurry according to claim 6, it is characterised in that: outside pressing filter
Uniform crossover is provided with N number of vibrating sensor and N number of noise transducer, the vibration of vibrating sensor collection machinery in the circumferential direction of cylinder main body
Dynamic signal, noise transducer acquisition noise signal judge the outer cylinder of pressing filter by mechanical oscillation signal and noise signal
Material position in main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611166547.4A CN107670393B (en) | 2016-12-12 | 2016-12-12 | A kind of Pressure Filter System of chemical industry slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611166547.4A CN107670393B (en) | 2016-12-12 | 2016-12-12 | A kind of Pressure Filter System of chemical industry slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107670393A CN107670393A (en) | 2018-02-09 |
| CN107670393B true CN107670393B (en) | 2019-10-18 |
Family
ID=61133958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611166547.4A Active CN107670393B (en) | 2016-12-12 | 2016-12-12 | A kind of Pressure Filter System of chemical industry slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107670393B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513028B (en) * | 2018-11-30 | 2020-07-17 | 郑州大学第一附属医院 | Sterilizing device for liver disease diagnosis and treatment tool |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066255A (en) * | 1999-04-26 | 2000-05-23 | H. R. Black Co. | Belt type filtration apparatus for industrial liquids having multiple sized debris |
| CN101530691A (en) * | 2009-03-09 | 2009-09-16 | 上海化工研究院 | Liquid solid separating method for regenerating filtrate medium in filter |
| CN202272788U (en) * | 2011-09-10 | 2012-06-13 | 赤峰中色库博红烨锌业有限公司 | Recovering treating system of waste water from sulfuric acid production |
| CN103007628A (en) * | 2012-12-13 | 2013-04-03 | 浙江华章科技有限公司 | Feeding pressure and pressing pressure linkage type pressure filter control method and high-pressure pressure filter |
| CN103808159A (en) * | 2013-11-08 | 2014-05-21 | 西安交通大学 | Automatic control method used for submerged arc furnace electrode and based on high-precision fuzzy control |
| CN104098242A (en) * | 2014-08-04 | 2014-10-15 | 饶宾期 | Sewage sludge advanced treatment method |
| CN204073629U (en) * | 2014-07-25 | 2015-01-07 | 萧县凯奇化工科技有限公司 | A kind of chemical dyestuff hybrid filtering system |
| CN105036380A (en) * | 2015-05-26 | 2015-11-11 | 浙江海洋学院 | Glass production wastewater treatment apparatus |
| CN205182354U (en) * | 2015-10-12 | 2016-04-27 | 中国神华能源股份有限公司 | Coal slime water processing system |
| CN105601080A (en) * | 2016-03-21 | 2016-05-25 | 饶宾期 | Sewage sludge reduction dewatering method |
-
2016
- 2016-12-12 CN CN201611166547.4A patent/CN107670393B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066255A (en) * | 1999-04-26 | 2000-05-23 | H. R. Black Co. | Belt type filtration apparatus for industrial liquids having multiple sized debris |
| CN101530691A (en) * | 2009-03-09 | 2009-09-16 | 上海化工研究院 | Liquid solid separating method for regenerating filtrate medium in filter |
| CN202272788U (en) * | 2011-09-10 | 2012-06-13 | 赤峰中色库博红烨锌业有限公司 | Recovering treating system of waste water from sulfuric acid production |
| CN103007628A (en) * | 2012-12-13 | 2013-04-03 | 浙江华章科技有限公司 | Feeding pressure and pressing pressure linkage type pressure filter control method and high-pressure pressure filter |
| CN103808159A (en) * | 2013-11-08 | 2014-05-21 | 西安交通大学 | Automatic control method used for submerged arc furnace electrode and based on high-precision fuzzy control |
| CN204073629U (en) * | 2014-07-25 | 2015-01-07 | 萧县凯奇化工科技有限公司 | A kind of chemical dyestuff hybrid filtering system |
| CN104098242A (en) * | 2014-08-04 | 2014-10-15 | 饶宾期 | Sewage sludge advanced treatment method |
| CN105036380A (en) * | 2015-05-26 | 2015-11-11 | 浙江海洋学院 | Glass production wastewater treatment apparatus |
| CN205182354U (en) * | 2015-10-12 | 2016-04-27 | 中国神华能源股份有限公司 | Coal slime water processing system |
| CN105601080A (en) * | 2016-03-21 | 2016-05-25 | 饶宾期 | Sewage sludge reduction dewatering method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107670393A (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107670385B (en) | A kind of extruding filtration system of chemical industry slurry | |
| CN107670376B (en) | A kind of filtration system of independent Gravity Separation | |
| CN107670392B (en) | A kind of belt filters pressing separation system that tuningout tensioning is integrated | |
| CN106179629B (en) | A kind of grinding chemical mechanical system of double-layered bucket wall | |
| CN107670387B (en) | A kind of press filteration system with dehydration train | |
| CN207928807U (en) | A kind of automatic backwash bag type filter device | |
| CN106179626B (en) | A kind of powder Two-way Cycle grinds chemical mechanical system | |
| CN107670393B (en) | A kind of Pressure Filter System of chemical industry slurry | |
| CN106884435A (en) | Foundation pit dewatering and recharging intelligent control system with touch display panel | |
| CN107670384B (en) | A kind of chemical industry pulp separation system of material position judgement | |
| CN106370445B (en) | Ballast water for ship filter capability experimental provision | |
| CN106140405A (en) | A kind of grinding chemical mechanical system of multisensor monitoring | |
| CN107670377B (en) | A kind of filter box system that can judge filter plate validity | |
| CN107670378B (en) | A kind of filter box system that can judge transmission device validity | |
| CN107670386B (en) | A kind of chemical industry pulp separation system of multisensor | |
| CN207950849U (en) | One kind being convenient for clean paint filter device | |
| CN107673497B (en) | Filtering and separating system of multilayer filter box | |
| CN106179630B (en) | A kind of grinding chemical mechanical system of barrel temperature fuzzy control | |
| CN107670601B (en) | A kind of chemical mechanical system with gate-type agitating paddle reaction kettle | |
| CN106179631B (en) | A kind of grinding chemical mechanical system of Double-directional rotary | |
| CN106111270A (en) | A kind of grinding chemical mechanical system of many lodicules | |
| CN107670612B (en) | A kind of stirring chemical mechanical system of multisensor monitoring | |
| CN207886769U (en) | A kind of paint filter device | |
| CN207375770U (en) | Full-automatic water treatment device | |
| CN211562097U (en) | Factory water pollution treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190902 Address after: 225800 Jinyuan Road, Anyi Town, Baoying County, Yangzhou City, Jiangsu Province Applicant after: Baoying County Organic Food Quality Supervision and Inspection Center Address before: 266071 Shandong city of Qingdao province Ningxia City Road No. 308 Applicant before: Qingdao University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |