CN208207599U - Ammonium persulfate process units DCS control system - Google Patents
Ammonium persulfate process units DCS control system Download PDFInfo
- Publication number
- CN208207599U CN208207599U CN201820474320.4U CN201820474320U CN208207599U CN 208207599 U CN208207599 U CN 208207599U CN 201820474320 U CN201820474320 U CN 201820474320U CN 208207599 U CN208207599 U CN 208207599U
- Authority
- CN
- China
- Prior art keywords
- ammonium persulfate
- scene
- process units
- equipment
- control system
- 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.)
- Expired - Fee Related
Links
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 title claims abstract description 198
- 229910001870 ammonium persulfate Inorganic materials 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 238000001704 evaporation Methods 0.000 claims abstract description 17
- 230000008020 evaporation Effects 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 84
- 229910021529 ammonia Inorganic materials 0.000 claims description 42
- 239000010405 anode material Substances 0.000 claims description 32
- 238000007710 freezing Methods 0.000 claims description 32
- 230000008014 freezing Effects 0.000 claims description 32
- 239000010406 cathode material Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 239000002994 raw material Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 12
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 11
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 238000005453 pelletization Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims 1
- 239000000047 product Substances 0.000 description 23
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 6
- 235000019394 potassium persulphate Nutrition 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000036647 reaction Effects 0.000 description 3
- 101100236700 Arabidopsis thaliana MCC1 gene Proteins 0.000 description 2
- 238000004176 ammonification Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a kind of ammonium persulfate process units DCS control systems.It includes DCS control system, ammonium persulfate process units；DCS control system includes master controller, exchanger, active station；Master controller is used for the real-time control of ammonium persulfate process units；Ammonium persulfate process units is provided with the live station I/O, PLC controller and scene the I/O station of individual field devices connect；Each station scene I/O is connect by DP bus with the master controller of DCS control system respectively.Application of the utility model due to DCS robot control system(RCS), so that the purpose of the evaporation of each large size, the use of crystallizer and steady production can be achieved completely in ammonium persulfate production process, so that the process units of ammonium persulfate be made to have reached increasingly automated, enlarged and modernization.The device is automatically controlled by DCS control system, can get the ammonium persulfate product of high-purity, moreover it is possible to electrolytic efficiency be made to reach best.
Description
Technical field
The utility model belongs to chemical production technical field, is related to a kind of ammonium persulfate process units DCS control system.
Background technique
Ammonium persulfate is a kind of important auxiliary chemicals, can be widely applied to the dedicated of high-grade electronics industry wiring board production
The dedicated initiator of auxiliary agent, polymerization of vinyl monomer, high-grade textile printing and dyeing inorganic agent, soil-repairing agent, environmentally friendly water treatment agent, analysis
Reagent etc..Ammonium persulfate can be used as the raw material of production sodium peroxydisulfate, potassium peroxydisulfate.Ammonium persulfate is generally with ammonium sulfate and sulfuric acid
Raw material is made using electrolysis method production.
The production technology of Process for Electrosynthesis of Ammonium Persulfate product is as follows:
Ammonium sulfate and sulfuric acid solution are under the conditions of certain temperature, solution after being electrolysed, contain height in anode discharging
The ammonium persulfate of concentration adjusts pH value, filtering removal impurity by ammonification, and ammonium persulfate is centrifugated out with freeze crystallization
Come, mother liquid coming is recycled, as anode material.The cathode material of electrolytic cell outflow is supplemented the concentrated sulfuric acid, reach certain density and
After acidity requirements, supplement cathode material is recycled.What is be centrifuged contains wet ammonium persulfate, and a part is produced as raw material
Sodium peroxydisulfate, potassium peroxydisulfate, a part is by dry for ammonium persulfate finished product.Ammonium persulfate product processes are as shown in Figure 2.
Currently, ammonium persulfate production industry not yet uses large-scale DCS control system (i.e. distributed AC servo system system
System, Distributed Control System) to carry out automation control to process units.Due to the particularity of the sector, or even connect instrument certainly
Dynamicization control it is also few, many factories are all also in workshop-based production model, and labor productivity is low, product quality
It is low, it is unstable.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide it is a kind of using DCS control system to over cure
The ammonium persulfate process units DCS control system that sour ammonium production system carries out automatically controlling.
The technical solution of the utility model is as follows:
A kind of ammonium persulfate process units DCS control system of the utility model, it includes DCS control system, ammonium persulfate
Process units；DCS control system includes master controller, exchanger, active station；Master controller is connected by exchanger and active station
It connects；Master controller is used for the real-time control of ammonium persulfate process units；Exchanger is for the behaviour between master controller and active station
Make information, status information communication, operational order is sent to master controller by active station by operator, and master controller then will be real
When state be sent to active station, complete real-time communication, operation, control；Ammonium persulfate process units scene is provided with live I/O
It stands, the PLC controller of the live each equipment with PLC controller and the station scene I/O connect；The live station I/O is total by DP respectively
Line is connect with the master controller of DCS control system.
Further, 3 I/O control cabinets, 3 I/O control cabinets and ammonium persulfate process units scene are dragged under master controller
The connection of all AI, AO, DI, DO points, be responsible for the real time monitoring of all AI, AO, DI, DO points in ammonium persulfate process units scene,
And connect with the PLC controller of all equipment with PLC controller in scene, carry out real-time communication.
Further, ammonium persulfate process units scene is arranged three scene I/O and stands and (be equipped with 3 I/O control cabinets), existing
The input-output apparatus at the field station I/O is connected and communicate with by profibus_DP bus and the first master controller；Three scene I/O
Standing production scene includes raw material configuration and feeding system, electrolytic rectifier system, electrolytic reaction system, logical ammonia system, freezing knot
Crystallographic system system, centrifugal separation system, ammonium persulfate evaporate recovery system, cooling water recirculation system, drying system, exhaust treatment system
The operation information of each live running equipment of each system inside, detection information and environmental protection treatment containing ammonia and dusty gas in tail gas
The operation information of facility and all equipment with PLC controller include four sets of electrolytic rectifier equipment, centrifuge, refrigerator, objects
The operation information for expecting conveying equipment, the active station of the central control room of DCS control system is transmitted to by DP bus, is operated simultaneously
All operational orders that the operator to stand issues will pass through what DP bus was connected into this three I/O and with each I/O equipment
The PLC controller of each live running equipment；In the ammonia absorber for monitoring logical ammonia system and emission by DCS control system
The pH value of absorbing liquid monitors the temperature and liquid level of freezing and crystallizing system, monitors the voltage and current of electrolytic rectifier system rectifier,
The material concentration and flow of electrolytic reaction system, monitor the operating condition of centrifuge, monitor the liquid level and each dynamic equipment of each groove tank
Operating condition and it is other it is each production subsystem operating condition.
Further, ammonium persulfate process units includes the raw material configuration being linked in sequence and feeding system, cell reaction system
System, logical ammonia system, freezing and crystallizing system, centrifugal separation system, drying system, further include the electrolysis connecting with electrolytic reaction system
Commutation system, the cooling water recirculation system being connect with freezing and crystallizing system, the ammonium persulfate being connect with electrolytic reaction system evaporation
Recovery system further includes the exhaust treatment system connecting with electrolytic reaction system, drying system；Raw material configuration and feeding system packet
Include the sulfuric acid make-up tank, cathode material head tank, cathode material surge tank of sequential connection, anode material head tank, the anode of sequential connection
Expect surge tank and material-handling pump；Electrolytic rectifier system includes rectifier and controller；Electrolytic reaction system includes electrolytic cell
And its connected material inlet and outlet piping；Cathode material surge tank, anode material surge tank respectively with cathode feed inlet, the anode of electrolytic cell
Feed inlet connection；Logical ammonia system includes the ammonium sulfate charging tank being linked in sequence with the anode discharge port of electrolytic cell, logical ammonia kettle；Freezing
Crystal system includes freezing and crystallizing kettle and refrigerator；Centrifugal separation system includes centrifuge；Logical ammonia kettle, freezing and crystallizing kettle, centrifugation
Machine is linked in sequence；It includes the evaporating kettle connecting with the cathode discharge port of electrolytic cell that ammonium persulfate, which evaporates recovery system,；Cooling water follows
Loop system includes water cooler, water tank and its circulating pump；Drying system includes drying machine, screw conveyor, product storage tank；At tail gas
Reason system includes cyclone separator i.e. deduster, blower, water curtain dust pelletizing system；Wherein, electrolytic cell, freezing and crystallizing kettle, evaporating kettle,
Centrifuge, drying machine, cathode material head tank, anode material head tank, cathode material surge tank, anode material surge tank, ammonium sulfate feed intake
The equipment belts PLC controllers such as tank, logical ammonia kettle；The scene of ammonium persulfate process units is provided with 3 stations scene I/O, scene is each
The PLC controller of equipment of the platform with PLC controller and 3 scene I/O stand (I/O control cabinet) connect, each station scene I/O leads to respectively
DP bus is crossed to connect with the master controller of DCS control system.
The utility model has the beneficial effects that
The ammonium persulfate process units DCS control system of the utility model, can be significantly increased labor productivity, mention
High yield quality, the utilization rate for improving raw material improve environmental protection.Due to the application of DCS robot control system(RCS), so that ammonium persulfate produces
The purpose of the evaporation of each large size, the use of crystallizer and steady production can be achieved completely in the process, to make ammonium persulfate
Process units reached it is increasingly automated, enlarged and modernization.Using DCS control system to ammonium persulfate production system into
Row automatically controls, and has great economic benefit and social benefit.
The advance of the ammonium persulfate process units DCS control system of the utility model is mainly reflected in following several respects:
A, the temperature of freezing and crystallizing kettle is automatically controlled by DCS control system, it is ensured that crystallisation by cooling is within specified temperatures
It carries out, to obtain the ammonium persulfate product (ammonium persulfate product purity reaches 99% or more) of high-purity, also ensures in mother liquor
Ammonium persulfate content reach ideal indicator, so that electrolytic efficiency is reached best.
B, the pH value control for being saturated anode material, which is controlled using PID controller (proportional-integral derivative controller) by DCS, is
System automatically controls logical ammonia, controls the pH value of feed liquid and stablizes, has reached good de-ferrous effect, reduced in ammonium persulfate product
Iron content (iron content falls below 0.0001% or less).
C, centrifuge carries out Automatic Control by DCS control system using the program of closed-loop operation, improves labor efficiency,
Operating environment is improved, good environment protecting has been reached.
D, ammonium persulfate production is measured using high-precision mass flowmenter, automatically controls feeding flow by DCS control system
Amount realizes accurate control, continuous production, had not only improved product yield, quality, but also reduce labor intensity and improve operation
Environment.
Detailed description of the invention
Fig. 1 is a kind of general structure schematic diagram of ammonium persulfate process units DCS control system of the utility model；
Fig. 2 is the ammonium persulfate product processes flow chart in the utility model.
Specific embodiment
The utility model is further described below in conjunction with drawings and examples.
Embodiment
As shown in Figure 1 and Figure 2, a kind of ammonium persulfate process units DCS control system of the utility model, it includes DCS control
System, ammonium persulfate process units；Wherein, DCS control system includes system cabinet (the 10# master controller set on central control room
System cabinet), exchanger (exchanger A, exchanger B), further include be located at ammonium persulfate process units scene three I/O control
Cabinet.
Central control room in Fig. 1 is set there are two master controller (10# master controller, 11# master controller), two exchangers
(exchanger A, exchanger B), two printers, four active stations (51# active station, 52# active station, 53# active station, 54# operations
Stand) and an engineer operation station (50# engineer station).Two master controllers are respectively used to the real-time control of production process,
In, 10# master controller is used for the real-time control of ammonium persulfate process units, drag three I/O control cabinets under the master controller, three
I/O control cabinet is connect with all AI, AO, DI, DO points at ammonium persulfate process units scene, and it is existing to be responsible for ammonium persulfate process units
The real time monitoring of 470 AI, AO, DI, DO points, and with the equipment of live 11 cuff PLC controllers (including electrolytic cell, freezing
Crystallization kettle, evaporating kettle, centrifuge, drying machine, cathode material head tank, anode material head tank, cathode material surge tank, anode material buffering
Tank, ammonium sulfate charging tank, logical ammonia kettle etc.) PLC controller connection, carry out real-time communication.Another 11# master controller is to be used for
The real-time control of sodium peroxydisulfate, potassium peroxydisulfate process units drags two I/O control cabinets under the master controller, be responsible for sodium peroxydisulfate,
The real time monitoring of live 557 AI, AO, DI, DO points of potassium peroxydisulfate process units, and filled with sodium peroxydisulfate, potassium peroxydisulfate production
The PLC controller connection for setting the equipment of live 6 cuff PLC controllers, carries out real-time communication.
Two exchangers are respectively used to two operation information, the states between master controller and engineer station and operator station
Operational order is sent to master controller by active station by information communication, operator, and master controller then sends real-time status
To active station, real-time communication, operation, control are completed.
It is located at three I/O control cabinets (extension cabinet) at ammonium persulfate process units scene, comprising: be located at electrolytic rectifier system
Rectification room (i.e. motor control center MCC0) MCC0 I/O extension cabinet, be located at the electric-controlled of ammonium persulfate process units
The MCC1 I/O extension cabinet of room (i.e. motor control center MCC1) processed, and it is located at the I/ at ammonium persulfate process units scene
O-0, I/O-1 extension cabinet.
AI refers to analog input, such as temperature, pressure, the amount of revolving speed, electric current consecutive variations, and signal is 4~20MA or 0
~10V；AO refers to analog output, i.e. Analog control signal, such as continuously adjustable actuator aperture control, frequency converter revolving speed
It adjusts, signal is 4~20MA or 0~10V, 0~5V.
DI refers to that digital quantity (switching value) inputs, and is in fact exactly electric secondary circuit on-off, certain state feedbacks, and signal is
24VDC or 220VAC；DO refers to the control signal or status signal that digital quantity (switching value) exports, i.e., issues from controller, letter
Number be 24VDC or 220VAC.
The utility model carries out automation control using production process of the DCS control system to entire ammonium persulfate, is adopted
Control program is state-of-the-art profibus DP field-bus structure.Ammonium persulfate process units scene is provided with 3
Live I/O stands (3 I/O control cabinets).On site, I is input input to the setting of the live station I/O, and O is output output.Live I/
The station O is equipped with I/O equipment (input-output apparatus).The PLC controller and scene I/O of the live each equipment with PLC controller are stood
I/O equipment (input-output apparatus) connection；It is total that the input-output apparatus at each station scene I/O passes through profibus_DP respectively
Line and the master controller of DCS control system are connected and communicate with.
The control method of the DCS control system is as follows:
Three scene I/O are arranged at ammonium persulfate process units scene to stand, include that raw material configures and feeds intake by production scene
System, electrolytic rectifier system, electrolytic reaction system, logical ammonia system, freezing and crystallizing system, centrifugal separation system, ammonium persulfate steam
Send out the fortune of each live running equipment of each system including recovery system, cooling water recirculation system, drying system, exhaust treatment system
Row information, operation information and all band PLC control of detection information and environment treating facility containing ammonia and dusty gas in tail gas
The equipment of device processed includes four sets of electrolytic rectifier equipment, electrolytic cell, centrifuge, refrigerator and freezing and crystallizing kettle, evaporating kettle, logical ammonia
Kettle, drying machine, material transfer equipment (cathode material head tank, anode material head tank, cathode material surge tank, anode material surge tank, sulphur
Sour ammonium charging tank, various delivery pumps etc.) operation information, the central control room of DCS control system is transmitted to by DP bus
Active station, at the same active station operator issue all operational orders will by DP bus enter this three I/O and with it is each
The PLC controller for each live running equipment that platform I/O equipment is connected reaches production, technique, equipment control and emergency processing
Purpose.
Here, DCS control system, which monitors in the tail gas of logical ammonia system and discharge, contains ammonia density, with control product quality and
Maintain the operation of environment-friendly disposal system；The temperature and liquid level of freezing and crystallizing system are monitored, remains normal raw to control product quality
It produces；The concentration and flow for monitoring voltage and current, cathode and anode the material disengaging of philcotron, monitor the operation of centrifuge
Situation can remotely take emergency measures with centrifuge separation operation when improper the case where to ensure electrolysis production；Monitor each slot
The operating condition and other each production subsystems of the liquid level of tank and each dynamic equipment maintain normal production.
The production technology and DCS control method for specifically using Process for Electrosynthesis of Ammonium Persulfate product in the utility model are such as
Under:
One, ammonium persulfate production technology (as shown in Figure 2)
Anode material ammonium sulfate and cathode material sulfuric acid solution are flowed from anode material head tank, cathode material head tank respectively
Out, enter electrolytic cell after anode material surge tank, the metering of cathode material surge tank respectively, in a cell under the conditions of certain temperature
Carry out cell reaction；Solution after electrolysis, the ammonium persulfate containing high concentration from the anode discharging that electrolytic cell flows out, through leading to ammonia
Kettle ammonification adjusts pH value, filtering removal impurity, and ammonium persulfate is centrifugated out in freezing and crystallizing kettle freezing and crystallizing through centrifuge
Come, mother liquid coming is recycled, as anode material；The cathode discharging flowed out from electrolytic cell evaporates recycling ammonium persulfate through evaporating kettle
Afterwards, the concentrated sulfuric acid is supplemented, after reaching certain density and acidity requirements, is recycled as cathode material (sulfuric acid solution).Through being centrifuged
Isolated contains wet ammonium persulfate, and a part produces sodium peroxydisulfate, potassium peroxydisulfate as raw material, and a part is by dry conduct
Ammonium persulfate finished product.Tail gas after drying and the tail gas from electrolytic cell discharge, through cyclone separator (deduster) dedusting, then pass through
Blower is sent into ammonium persulfate water curtain dust pelletizing system and is dusted again, makes to contain ammonia and dusty gas concentration heel row up to standard in tail gas
It puts.
Ammonium persulfate process units includes the raw material configuration being linked in sequence and feeding system, electrolytic reaction system, logical ammonia system
System, freezing and crystallizing system, centrifugal separation system, drying system, further include the electrolytic rectifier system being connect with electrolytic reaction system,
The cooling water recirculation system being connect with freezing and crystallizing system, the ammonium persulfate evaporation recovery system being connect with electrolytic reaction system,
It further include the exhaust treatment system being connect with electrolytic reaction system, drying system；Raw material configuration and feeding system include that sequence connects
Sulfuric acid make-up tank, cathode material head tank, the cathode material surge tank connect, anode material head tank, the anode material surge tank of sequential connection,
It further include material transfer equipment delivery pump etc.；Electrolytic rectifier system includes rectifier and controller；Electrolytic reaction system includes electricity
Solve slot and its connected material inlet and outlet piping；(electrolytic rectifier system has four sets, and every set electrolytic rectifier system includes a rectifier
With several controllers, every set electrolytic rectifier system is connect with 68 electrolytic cells)；Cathode material surge tank, anode material surge tank difference
It is connect with the cathode feed inlet of electrolytic cell, anode feed mouth；Logical ammonia system includes being linked in sequence with the anode discharge port of electrolytic cell
Ammonium sulfate charging tank, logical ammonia kettle；Freezing and crystallizing system includes freezing and crystallizing kettle and refrigerator；Centrifugal separation system includes centrifugation
Machine；Logical ammonia kettle, freezing and crystallizing kettle, centrifuge are linked in sequence；It includes going out with the cathode of electrolytic cell that ammonium persulfate, which evaporates recovery system,
The evaporating kettle of material mouth connection；Cooling water recirculation system includes water cooler, water tank and its circulating pump；Drying system include drying machine,
Screw conveyor, product storage tank；Exhaust treatment system includes three cyclone separators (deduster), blower, water curtain dust pelletizing systems.
Wherein, electrolytic cell, freezing and crystallizing kettle and refrigerator, evaporating kettle, centrifuge, drying machine, cathode material head tank, anode material are high-order
11 sets of equipment belt PLC controllers such as slot, cathode material surge tank, anode material surge tank, ammonium sulfate charging tank, logical ammonia kettle.
At ammonium persulfate process units scene, there are three scene I/O to stand for setting, the live each equipment with PLC controller
The PLC controller and 3 of (including four sets of electrolytic rectifier systems, centrifuge, refrigerator, material transfer equipments with PLC controller)
A station scene I/O (i.e. three I/O equipment, three I/O control cabinets) connection, each station scene I/O are controlled by DP bus and DCS respectively
The 10# master controller of system processed connects.Production scene is included raw material configuration and feeding system, electrolytic rectifier by 3 stations scene I/O
It is system, electrolytic reaction system, logical ammonia system, freezing and crystallizing system, centrifugal separation system, ammonium persulfate evaporation recovery system, cold
But the operation information of each live running equipment of each system including water circulation system, drying system, exhaust treatment system, at tail gas
The operation information containing ammonia and dusty gas detection information and environment treating facility of reason system and all with PLC controller
Four sets of electrolytic rectifier equipment, centrifuge, refrigerator, material transfer equipment operation information, control is transmitted to by DP bus
The active station of room, while all operational orders that the operator of active station issues will enter this three I/O equipment by DP bus
The PLC controller of (three I/O control cabinets) and each live running equipment being connected with each I/O equipment, reaches production, work
Skill, the purpose of equipment control and emergency processing.
Ammonium persulfate production technology includes: raw material configuration and conveying (containing feeding intake) process, electrolytic rectifier process, cell reaction
Process, logical ammonia process, refrigeration crystallization process, centrifugal separation processes, ammonium persulfate evaporation removal process, cooling water cycle process,
Drying process, vent gas treatment (i.e. dedusting) process.
During electrolytic rectifier, rectifier current is controlled in 5650~5950A by DCS control system；Electrolytic cell list
Tank voltage < 5.5V.
In raw material configuration and transmission process, by DCS control system control cathode material head tank, anode material head tank
Liquid level in 30-70%；It controls anode material and feeds acidity >=0.2mol/L；Cathode material feeds 1.0~1.8mol/L of acidity；Anode
Expect that density is 29~31Be °；
During cell reaction, come out by the control of DCS control system from cathode material surge tank, anode material surge tank
Mass flow makes anode material feed rate (single slot) 80~120L/h, cathode material feed rate (single slot) 300~600L/h；Control
The content of anode discharging middle and high concentration ammonium persulfate processed is maintained at 230~280g/L；Cathode material discharges acidity in 0.3-
0.48mol/L；It controls 30-40 DEG C of anode material temperature degree (winter), 30-45 DEG C (summer).
During logical ammonia, by anode material pH value after leading to ammonia in the logical ammonia kettle of DCS control system control 7.0~7.5；It is logical
32~38 DEG C of feed liquid temperature after ammonia；Also, control ammonium persulfate content in the ammonium sulfate charging tank that is connect with logical ammonia kettle entrance >=
210g/L；Anode material density is 29~31Be ° after feeding intake；
In freezing and crystallizing, centrifuge separation, drying process, freezing and crystallizing temperature in the kettle is controlled 0 by DCS control system
~-5 DEG C；60~75 DEG C of drying bed temperature of charge；Dry 10~12cm of bed body bed depth；The water content of finished product is lower than after drying
0.1%.
During vent gas treatment (i.e. dedusting), controlled by DCS control system through cyclone separator (deduster) dedusting,
Particle concentration is in the dusty gas being sent into the tail gas that ammonium persulfate water curtain dust pelletizing system is dusted again through blower again
Less than 3.3mg/m3。
The advance of the ammonium persulfate process units DCS control system of the utility model is mainly reflected in following several respects:
A, the temperature of freezing and crystallizing kettle is automatically controlled by DCS control system, it is ensured that crystallisation by cooling is within specified temperatures
It carries out, to obtain the ammonium persulfate product (ammonium persulfate product purity reaches 99% or more) of high-purity, also ensures in mother liquor
Ammonium persulfate content reach ideal indicator, so that electrolytic efficiency is reached best.
B, the pH value control for being saturated anode material, which is controlled using PID controller (proportional-integral derivative controller) by DCS, is
System automatically controls logical ammonia, controls the pH value of feed liquid and stablizes, has reached good de-ferrous effect, reduced in ammonium persulfate product
Iron content (iron content falls below 0.0001% or less).
C, centrifuge carries out Automatic Control by DCS control system using the program of closed-loop operation, improves labor efficiency,
Operating environment is improved, good environment protecting has been reached.
D, ammonium persulfate production is using high-precision mass flowmenter (can be as accurate as gram) metering, by DCS control system
Feed rate is automatically controlled, accurate control, continuous production is realized, had not only improved product yield, quality, but also reduces labour by force
It spends and improves operating environment.
The utility model is in DCS control system real-time control, and control to electrolysis temperature, pressure, electric current can reduce energy
Consumption, the yield and product quality for improving product；Monitoring to circulating cooling water temperature can reduce the energy consumption and water consume of recirculated water；It is right
The monitoring of the pH value of production system can reduce uncontrollable discharge and the systematicness discharge of ammonia, recycle ammonia as much as possible
With the consumption for reducing ammonia.
The utility model uses newest DCS automatic control scheme to ammonium persulfate production system, then substantially increases dress
The production capacity set greatly reduces in production so that the conversion ratio of production process can achieve 99% or more to each raw material
Consumption, decreases the generation of many byproducts, greatly reduces production cost.
The utility model due to DCS robot control system(RCS) application so that in ammonium persulfate production process to the evaporation of each large size,
The use of crystallizer and the purpose of steady production can be achieved completely, so that the process units of ammonium persulfate be made to have reached height certainly
Dynamicization, enlargement and modernization.
The utility model carries out automatically controlling ammonium persulfate production system using DCS control system, can be significantly
It raises labour productivity, improves product quality, improve the utilization rate of raw material, improve environmental protection, there is great economic benefit and society
It can benefit.
Claims (4)
1. a kind of ammonium persulfate process units DCS control system, which is characterized in that it includes DCS control system, ammonium persulfate life
Produce device；DCS control system includes master controller, exchanger, multiple active stations；Master controller is connected by exchanger and active station
It connects；Master controller is used for the real-time control of ammonium persulfate process units；Exchanger is for the behaviour between master controller and active station
Make information, status information communication, operational order is sent to master controller by active station by operator, and master controller then will be real
When state be sent to active station, complete real-time communication, operation, control；Ammonium persulfate process units scene is provided with live I/O
It stands, the PLC controller of the live each equipment with PLC controller and the station scene I/O connect；The live station I/O is total by DP respectively
Line is connect with the master controller of DCS control system.
2. ammonium persulfate process units DCS control system as described in claim 1, which is characterized in that drag 3 under master controller
I/O control cabinet, 3 I/O control cabinets are connect with all AI, AO, DI, DO points at ammonium persulfate process units scene, are responsible for over cure
The real time monitoring of all AI, AO, DI, DO points in sour ammonium process units scene, and with all equipment with PLC controller in scene
PLC controller connection, carries out real-time communication.
3. ammonium persulfate process units DCS control system as described in claim 1, which is characterized in that ammonium persulfate production dress
The scene of setting is arranged three scene I/O and stands i.e. equipped with three I/O equipment, and the input-output apparatus at the live station I/O passes through
Profibus_DP bus is connected and communicate with the first master controller；The station three scene I/O by production scene include raw material configuration and
Feeding system, electrolytic rectifier system, electrolytic reaction system, logical ammonia system, freezing and crystallizing system, centrifugal separation system, persulfuric acid
Ammonium evaporates each live running equipment of each system including recovery system, cooling water recirculation system, drying system, exhaust treatment system
Operation information, the operation information and all bands of detection information and environment treating facility containing ammonia and dusty gas in tail gas
The equipment of PLC controller include four sets of electrolytic rectifier equipment, centrifuge, refrigerator, material transfer equipment operation information, pass through
DP bus is transmitted to the active station of the central control room of DCS control system, while all operations that the operator of active station issues
Instruction will pass through PLC of the DP bus into this three I/O equipment and each live running equipment being connected with each I/O equipment
Controller.
4. ammonium persulfate process units DCS control system as described in claim 1, which is characterized in that ammonium persulfate production dress
Set raw material configuration and feeding system, electrolytic reaction system, logical ammonia system, freezing and crystallizing system, centrifugation point including sequential connection
From system, drying system, further include the electrolytic rectifier system being connect with electrolytic reaction system, connect with freezing and crystallizing system it is cold
But water circulation system, the ammonium persulfate evaporation recovery system connecting with electrolytic reaction system further include and electrolytic reaction system, dry
The exhaust treatment system of drying system connection；Raw material configuration and feeding system include the sulfuric acid make-up tank being linked in sequence, cathode material height
Position slot, cathode material surge tank, anode material head tank, anode material surge tank and the material-handling pump of sequential connection；Electrolytic rectifier
System includes rectifier and controller；Electrolytic reaction system includes electrolytic cell and its connected material inlet and outlet piping；Cathode material is slow
Rush tank, anode material surge tank is connect with the cathode feed inlet of electrolytic cell, anode feed mouth respectively；Logical ammonia system includes and electrolytic cell
Anode discharge port the ammonium sulfate charging tank, the logical ammonia kettle that are linked in sequence；Freezing and crystallizing system includes freezing and crystallizing kettle and refrigerator；
Centrifugal separation system includes centrifuge；Logical ammonia kettle, freezing and crystallizing kettle, centrifuge are linked in sequence；Ammonium persulfate evaporates recovery system
The evaporating kettle being connect including the cathode discharge port with electrolytic cell；Cooling water recirculation system includes water cooler, water tank and its circulating pump；
Drying system includes drying machine, screw conveyor, product storage tank；Exhaust treatment system includes cyclone separator i.e. deduster, wind
Machine, water curtain dust pelletizing system；Wherein, electrolytic cell, freezing and crystallizing kettle, refrigerator, evaporating kettle, centrifuge, drying machine, cathode material are high-order
Slot, anode material head tank, cathode material surge tank, anode material surge tank, ammonium sulfate charging tank, logical ammonia kettle these equipment belts PLC control
Device processed；The scene of ammonium persulfate process units is provided with 3 stations scene I/O, equipment of each of the scene with PLC controller
PLC controller is connected with 3 stations scene I/O, and each station scene I/O passes through the master controller of DP bus and DCS control system respectively
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474320.4U CN208207599U (en) | 2018-04-04 | 2018-04-04 | Ammonium persulfate process units DCS control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474320.4U CN208207599U (en) | 2018-04-04 | 2018-04-04 | Ammonium persulfate process units DCS control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207599U true CN208207599U (en) | 2018-12-07 |
Family
ID=64525333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820474320.4U Expired - Fee Related CN208207599U (en) | 2018-04-04 | 2018-04-04 | Ammonium persulfate process units DCS control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208207599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319247A (en) * | 2018-04-04 | 2018-07-24 | 上海天坛助剂有限公司 | Ammonium persulfate process units DCS control systems and control method |
-
2018
- 2018-04-04 CN CN201820474320.4U patent/CN208207599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319247A (en) * | 2018-04-04 | 2018-07-24 | 上海天坛助剂有限公司 | Ammonium persulfate process units DCS control systems and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108227668A (en) | Sodium peroxydisulfate and potassium peroxydisulfate process units DCS control systems and control method | |
| CN208027162U (en) | Sodium peroxydisulfate and potassium peroxydisulfate process units DCS control systems | |
| CN105540619A (en) | Method for directly preparing battery grade lithium carbonate from salt lake brine with high magnesium-to-lithium ratio | |
| CN110330039B (en) | Production system and production process for continuously preparing anhydrous sodium sulphate by acid bath | |
| CN110420659B (en) | Device and method for catalytic oxidation of magnesium sulfite, cobalt nitrate/ZSM-5 molecular sieve catalyst and preparation method thereof | |
| CN107758620B (en) | The succinct lithium hexafluoro phosphate synthesis tail gas processing method of process flow and dedicated unit | |
| CN102435049B (en) | Anhydrous dextrose drying device and drying process | |
| CN208207599U (en) | Ammonium persulfate process units DCS control system | |
| CN103804252B (en) | The technique of methionine(Met) Crystallization Separation system and Crystallization Separation methionine(Met) | |
| CN207002498U (en) | A kind of vanadium wastewater Zero discharging system | |
| CN214892178U (en) | Drying system of adipic acid fluidized bed device | |
| CN108279658A (en) | Persulfate process units DCS control systems and control method | |
| CN207992803U (en) | Persulfate process units DCS control systems | |
| CN108319247A (en) | Ammonium persulfate process units DCS control systems and control method | |
| CN101792447A (en) | Process and device for preparing urotropine by using gas phase method | |
| CN201686637U (en) | Hexamethylenetetramine preparing device by gas phase method | |
| CN215667169U (en) | High-purity octahydrate barium hydroxide purification production system | |
| CN104671570A (en) | Method for treating aluminum-containing wastewater in preparation process of 6-oxo-8-chloro ethyl caprylate | |
| CN203598810U (en) | Lithium salt preparation device | |
| CN104045063B (en) | A kind for the treatment of process of waste sulfuric acid solution | |
| CN104310442B (en) | Concentrated, the vacuum crystallization system of the continuous triple effect of ammonium chloride pump circulation and technique in a kind of double decomposition Production of Potassium Nitrate | |
| CN203976931U (en) | Energy-efficient equipment in succinic acid preparation | |
| CN203372400U (en) | Comprehensive conveying and packaging machine for chemical raw material | |
| CN203923396U (en) | A kind of electrodeposited cobalt anolyte vacuum-evaporation dechlorination apparatus | |
| CN205856358U (en) | The continuous production device of 1 LOMAR PWA EINECS 246-676-2 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |