CN112506158A - Automatic mud phosphorus distillation temperature control system - Google Patents
Automatic mud phosphorus distillation temperature control system Download PDFInfo
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- CN112506158A CN112506158A CN202011462502.8A CN202011462502A CN112506158A CN 112506158 A CN112506158 A CN 112506158A CN 202011462502 A CN202011462502 A CN 202011462502A CN 112506158 A CN112506158 A CN 112506158A
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 225
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 220
- 239000011574 phosphorus Substances 0.000 title claims abstract description 220
- 238000004821 distillation Methods 0.000 title claims abstract description 63
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 239000002893 slag Substances 0.000 claims abstract description 31
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000005485 electric heating Methods 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 combustion bomb Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- RWQFRHVDPXXRQN-UHFFFAOYSA-N phosphorus sesquisulfide Chemical compound P12SP3SP1P2S3 RWQFRHVDPXXRQN-UHFFFAOYSA-N 0.000 description 1
- 239000003128 rodenticide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/04—Purification of phosphorus
- C01B25/047—Purification of phosphorus of yellow phosphorus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- 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]
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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Quality & Reliability (AREA)
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Abstract
The invention discloses an automatic control system for the distillation temperature of phosphorus sludge, and relates to the technical field of yellow phosphorus recovery. The device comprises a temperature control unit of a phosphorus mud tank, a temperature control unit of a feeding barrel, a temperature control unit of a tower distillation furnace, a phosphorus discharging temperature control unit, a slag discharging temperature control unit and a temperature control unit of a phosphorus receiving tank, wherein the temperature control unit of the phosphorus mud tank comprises a temperature sensor of the phosphorus mud tank and a steam control valve of the phosphorus mud tank; the feeding barrel temperature control unit comprises a feeding barrel temperature sensor, a feeding barrel concentration sensor, a jacket electric heating assembly and a phosphorus pumping pump. According to the invention, the PLC control system is adopted to control the temperature of the phosphorus mud tank, the temperature of the feeding barrel, the temperature of the tower type distillation furnace, the phosphorus discharging temperature, the slag discharging temperature and the temperature of the phosphorus collecting tank, so that the centralized display, the centralized operation, the centralized management and the decentralized control of the temperature are realized, the process parameters are kept in the optimal range, and the recovery efficiency and the quality of the yellow phosphorus are better.
Description
Technical Field
The invention belongs to the technical field of yellow phosphorus recovery, and particularly relates to an automatic mud phosphorus distillation temperature control system.
Background
Yellow phosphorus generally refers to white phosphorus, which is a simple substance of phosphorus, has a chemical formula of P4, is white or light yellow translucent solid in appearance, has many purposes, the industrial preparation of high-purity phosphoric acid by using white phosphorus, the utilization of white phosphorus to easily produce smoke and fog, the preparation of smoke bomb and combustion bomb in military affairs, and the preparation of red phosphorus, tetraphosphorus trisulfide, organic phosphate, combustion bomb, rodenticide by using white phosphorus, the continuous feeding tower type phosphorus mud distillation furnace is a set of novel yellow phosphorus recovery process, the process characteristics are determined by the characteristics of phosphorus elements, the temperature control of equipment is very important in the process of recovering yellow phosphorus, however, the existing mud phosphorus distillation temperature control system has low automation degree, the technological parameters of yellow phosphorus recovery are difficult to maintain in the optimal range, and the yellow phosphorus recovery effect is not ideal, so that the prior art needs to be improved to solve the problems.
Disclosure of Invention
The invention aims to provide an automatic control system for the distillation temperature of phosphorus mud, which realizes centralized display, centralized operation, centralized management and decentralized control of temperature by controlling the temperature of a phosphorus mud tank, the temperature of a charging barrel, the temperature of a tower-type distillation furnace, the temperature of phosphorus discharge, the temperature of slag discharge and the temperature of a phosphorus collection tank by adopting a PLC control system, so that process parameters are kept in the optimal range, thereby ensuring the production efficiency and the quality of yellow phosphorus to be better, and solving the problems that the existing temperature control system for the distillation temperature of phosphorus mud has low automation degree, the process parameters for recovering yellow phosphorus are difficult to keep in the optimal range, and the recovery effect of yellow phosphorus is not ideal.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a mud phosphorus distillation temperature automatic control system, which comprises a mud phosphorus pot temperature control unit, a feeding barrel temperature control unit, a tower type distillation furnace temperature control unit, a phosphorus discharging temperature control unit, a slag discharging temperature control unit and a phosphorus collecting pot temperature control unit, wherein the mud phosphorus pot temperature control unit comprises a mud phosphorus pot temperature sensor and a mud phosphorus pot steam control valve, the mud phosphorus pot temperature sensor is arranged in a mud phosphorus pot, the mud phosphorus pot steam control valve is arranged on a steam pipeline, the output end of the mud phosphorus pot temperature sensor is electrically connected with the input end of a PLC (programmable logic controller), the output end of the PLC is electrically connected with the input end of the mud phosphorus pot steam control valve, and the mud phosphorus pot is heated by adopting steam, so that the temperature of the mud phosphorus pot is kept at 70-85 ℃ and is kept warm for 24 hours;
the feeding barrel temperature control unit comprises a feeding barrel temperature sensor, a feeding barrel concentration sensor, a jacket electric heating assembly and a phosphorus pumping pump, the feeding barrel temperature sensor and the feeding barrel concentration sensor are arranged inside the feeding barrel, the jacket electric heating assembly is sleeved on the outer surface of the feeding barrel, the phosphorus pumping pump is arranged on a pipeline between the feeding barrel and a phosphorus mud tank, the output end of the feeding barrel temperature sensor and the output end of the feeding barrel concentration sensor are both electrically connected with the input end of a PLC (programmable logic controller), the output end of the PLC is respectively electrically connected with the input end of the jacket electric heating assembly and the input end of the phosphorus pumping pump, the feeding barrel is heated by a jacket heating method, and the feeding barrel temperature is guaranteed to be kept at 70-85 ℃;
the temperature control unit of the tower distillation furnace comprises a furnace top temperature sensor, a furnace top pressure sensor, furnace layer temperature sensors, feeding electric control metering valves and a tail gas control valve, wherein the furnace top temperature sensor and the furnace top pressure sensor are arranged on the furnace top of the tower distillation furnace, the furnace layer temperature sensors are arranged on each furnace layer in the tower distillation furnace, the feeding electric control metering valves are arranged on a pipeline between the tower distillation furnace and a feeding barrel, the tail gas control valve is arranged on a CO tail gas pipeline, the output ends of the furnace top temperature sensor, the furnace top pressure sensor and the furnace layer temperature sensor are electrically connected with the input end of a PLC (programmable logic controller), and the output end of the PLC is electrically connected with the input end of the feeding electric control metering valves and the input end of the tail gas control valve respectively;
the phosphorus outlet temperature control unit comprises a phosphorus outlet temperature sensor, a phosphorus outlet pressure sensor and an alarm unit, the phosphorus outlet temperature sensor and the phosphorus outlet pressure sensor are both arranged in a phosphorus outlet confluence pipeline, the output end of the phosphorus outlet temperature sensor and the output end of the phosphorus outlet pressure sensor are both electrically connected with the input end of a PLC (programmable logic controller), and the output end of the PLC is electrically connected with the input end of the alarm unit;
the slag discharging temperature control unit comprises a slag discharging temperature sensor, a motor current sensor and an alarm unit, the slag discharging temperature sensor and the motor current sensor are both arranged in the slag discharging spiral, and the output end of the slag discharging temperature sensor and the output end of the motor current sensor are both electrically connected with the input end of the PLC;
the phosphorus recovery tank temperature control unit comprises a phosphorus recovery tank temperature sensor and a phosphorus recovery tank steam control valve, the phosphorus recovery tank temperature sensor is arranged in a phosphorus recovery tank, the phosphorus recovery tank steam control valve is arranged on a steam pipeline, the output end of the phosphorus recovery tank temperature sensor is electrically connected with the input end of a PLC (programmable logic controller), the output end of the PLC is electrically connected with the input end of the phosphorus recovery tank steam control valve, and the phosphorus recovery tank is heated by adopting steam to ensure that the temperature of the phosphorus recovery tank is more than or equal to 60 ℃;
the PLC is arranged in a PLC control cabinet near the tower distillation furnace, the PLC is connected with an operator station through an Ethernet, and the PLC is connected with each sensor and the execution unit through a Profibus-DP field bus.
Further, the working process of the temperature control unit of the phosphorus mud tank comprises the steps of monitoring the temperature in the phosphorus mud tank at any time through the temperature sensor of the phosphorus mud tank, transmitting temperature data to the PLC, sending a signal to the steam control valve of the phosphorus mud tank by the PLC according to the temperature, automatically adjusting the size of steam, and further adjusting the temperature in the phosphorus mud tank.
The feeding barrel temperature control unit is used for monitoring the temperature of phosphorus slurry overflowing from the feeding barrel constantly through the feeding barrel temperature sensor, monitoring the concentration of the phosphorus slurry overflowing from the feeding barrel constantly through the feeding barrel concentration sensor, transmitting temperature and concentration data to the PLC, sending a signal to the phosphorus pump by the PLC when the concentration of the phosphorus slurry overflowing from the feeding barrel reaches 20% and the temperature is lower than 60 ℃, stopping the phosphorus pump, starting the jacket electric heating assembly, adjusting the temperature in the feeding barrel, and controlling the phosphorus pump to be started automatically by the PLC when the pressure in the feeding barrel reaches-0.3 kPa and the pressure in the tower distillation furnace rises to be greater than 0.3 kPa.
Further, the working process of the temperature control unit of the tower distillation furnace comprises the steps of constantly monitoring the temperature of the inner furnace top of the tower distillation furnace through the furnace top temperature sensor, constantly monitoring the pressure of the inner furnace top of the tower distillation furnace through the furnace top pressure sensor, transmitting temperature and pressure data to the PLC, when the furnace top pressure of the tower distillation furnace is greater than 0.5kPa and the temperature of the furnace top is less than 200 ℃, sending a signal to the feeding electric control metering valve by the PLC, controlling the feeding amount by adjusting the discharging amount of the feeding electric control metering valve, constantly monitoring the temperature of each furnace layer in the tower distillation furnace through the furnace layer temperature sensor, transmitting the temperature data to the PLC, sending a signal to the tail gas control valve by the PLC according to the temperature, automatically adjusting the gas output amount of tail gas CO of each furnace layer, and further changing the temperature.
Furthermore, the working process of the phosphorus outlet temperature control unit is that the temperature in the phosphorus confluence pipeline is constantly monitored by the phosphorus outlet temperature sensor, the pressure in the phosphorus confluence pipeline is constantly monitored by the phosphorus outlet pressure sensor, the temperature and pressure data are transmitted to the PLC, and when the temperature in the phosphorus outlet confluence pipeline is reduced to be lower than 80 ℃ and the pressure of water vapor in the phosphorus outlet confluence pipeline is greater than 2kPa, the PLC controls the alarm unit to send an alarm signal.
Further, the working process of the slag discharging temperature control unit is that the temperature of the slag discharging spiral is monitored constantly through the slag discharging temperature sensor, the motor current of the slag discharging spiral is monitored constantly through the motor current sensor, the temperature and the motor current data are transmitted to the PLC, when the temperature of the slag discharging spiral is reduced to be lower than 60 ℃, and when the motor current of the slag discharging spiral exceeds 30% of the working current, the PLC controls the alarm unit to send an alarm signal.
Furthermore, the working process of the phosphorus collection tank temperature control unit is that the temperature inside the phosphorus collection tank is constantly monitored through the phosphorus collection tank temperature sensor, the temperature data is transmitted to the PLC, the PLC sends a signal to the phosphorus collection tank steam control valve according to the temperature, the steam size is automatically adjusted, and then the temperature in the phosphorus collection tank is adjusted.
Further, the alarm unit comprises a field voice alarm module, an operator station voice alarm module and a short message sending module, the field voice alarm module is arranged at the top of the PLC control cabinet near the tower distillation furnace, the operator station voice alarm module is arranged in the operator station, and the short message sending module is arranged in the PLC control cabinet.
The invention has the following beneficial effects:
according to the invention, the temperature of the phosphorus mud tank, the temperature of the feeding barrel, the temperature of the tower type distillation furnace, the phosphorus discharging temperature, the slag discharging temperature and the temperature of the phosphorus receiving tank are controlled by adopting the PLC control system, the temperature data are monitored by each sensor, the monitored data signals are sent to the PLC controller, and the PLC controller is used for finishing data processing, so that the centralized display, the centralized operation, the centralized management and the decentralized control of the temperature are realized, the process parameters are kept in the optimal range, and the recovery efficiency and the quality of the yellow phosphorus are better.
The invention has the advantages that the safety of the temperature control system is better by arranging the field voice alarm module, the operator station voice alarm module and the short message sending module, a fault audio file is output by voice alarm, the fault of the equipment is accurately prompted, the equipment management is more convenient, the field and the operator station can send out alarm signals at the first time to process the fault in time, meanwhile, the fault alarm information is sent to the mobile phone of a responsible person by the short message sending module, and when the responsible person is in a remote place, the state of the equipment can be known at the first time to guide.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a flow chart of the phosphorus sludge distillation process of the present invention;
fig. 3 is a schematic structural diagram of an alarm unit of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a temperature sensor of the mud phosphorus tank; 2. a charging barrel temperature sensor; 3. a charging barrel concentration sensor; 4. a furnace top temperature sensor; 5. a furnace top pressure sensor; 6. a furnace layer temperature sensor; 7. a phosphorus output temperature sensor; 8. a phosphorus discharge pressure sensor; 9. a slag tapping temperature sensor; 10. a motor current sensor; 11. a temperature sensor of the phosphorus collection tank; 12. a PLC controller; 13. a vapor control valve of the phosphorus sludge tank; 14. a jacketed electrical heating assembly; 15. a phosphorus pump; 16. a feed electric control metering valve; 17. a tail gas control valve; 18. an alarm unit; 19. a vapor control valve of the phosphorus collection tank; 20. an operator station; 1801. a field voice alarm module; 1802. an operator station voice alarm module; 1803. and a short message sending module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the invention relates to a mud phosphorus distillation temperature automatic control system, which comprises a mud phosphorus pot temperature control unit, a charging bucket temperature control unit, a tower type distillation furnace temperature control unit, a phosphorus discharging temperature control unit, a slag discharging temperature control unit and a phosphorus receiving pot temperature control unit, wherein the mud phosphorus pot temperature control unit comprises a mud phosphorus pot temperature sensor 1 and a mud phosphorus pot steam control valve 13, the mud phosphorus pot temperature sensor 1 is arranged inside a mud phosphorus pot, the mud phosphorus pot steam control valve 13 is arranged on a steam pipeline, the output end of the mud phosphorus pot temperature sensor 1 is electrically connected with the input end of a PLC 12, the output end of the PLC 12 is electrically connected with the input end of the mud phosphorus pot steam control valve 13, the mud phosphorus pot is heated by steam, the temperature of the mud phosphorus pot is ensured to be kept at 70-85 ℃, and the temperature is kept for 24 hours, the working process of the mud phosphorus pot temperature control unit is as follows, through the temperature in the mud phosphorus jar 1 monitoring mud phosphorus jar constantly to give PLC controller 12 with temperature data transmission, PLC controller 12 is according to the temperature height, and sending signal to mud phosphorus jar steam control valve 13, the automatic adjustment steam size, and then the temperature in the regulation mud phosphorus jar.
Wherein, as shown in figures 1-2, the temperature control unit of the feeding barrel comprises a temperature sensor 2 of the feeding barrel, a concentration sensor 3 of the feeding barrel, a jacket electric heating component 14 and a phosphorus pumping pump 15, the temperature sensor 2 of the feeding barrel and the concentration sensor 3 of the feeding barrel are both arranged inside the feeding barrel, the jacket electric heating component 14 is sleeved on the outer surface of the feeding barrel, the phosphorus pumping pump 15 is arranged on a pipeline between the feeding barrel and a phosphorus mud tank, the output end of the temperature sensor 2 of the feeding barrel and the output end of the concentration sensor 3 of the feeding barrel are both electrically connected with the input end of a PLC 12, the output end of the PLC 12 is respectively electrically connected with the input end of the jacket electric heating component 14 and the input end of the phosphorus pumping pump 15, the feeding barrel is heated by adopting a jacket heating method, the temperature of the feeding barrel is ensured to be kept at 70-85 ℃, the working process of the temperature control unit of the feeding barrel is that the temperature sensor 2 of the feeding barrel constantly monitors the overflow temperature of the phosphorus mud slurry in the feeding barrel, the concentration of the phosphorus sludge overflow slurry in the feeding barrel is constantly monitored by the feeding barrel concentration sensor 3, the temperature and concentration data are transmitted to the PLC (programmable logic controller) 12, when the concentration of the phosphorus sludge overflow slurry in the feeding barrel reaches 20% and the temperature is lower than 60 ℃, the PLC 12 sends a signal to the phosphorus pump 15, the phosphorus pump 15 is stopped, the jacket electric heating assembly 14 is started, the temperature in the feeding barrel is adjusted, when the pressure in the feeding barrel reaches-0.3 kPa, meanwhile, the pressure in the tower type distillation furnace rises to be higher than 0.3kPa, and the PLC 12 controls the phosphorus pump 15 to be automatically started.
As shown in fig. 1-2, the tower distillation furnace temperature control unit comprises a furnace top temperature sensor 4, a furnace top pressure sensor 5, a furnace layer temperature sensor 6, a feeding electric control metering valve 16 and a tail gas control valve 17, wherein the furnace top temperature sensor 4 and the furnace top pressure sensor 5 are both arranged on the furnace top of the tower distillation furnace, the furnace layer temperature sensor 6 is arranged on each furnace layer in the tower distillation furnace, the feeding electric control metering valve 16 is arranged on a pipeline between the tower distillation furnace and a charging barrel, the tail gas control valve 17 is arranged on a CO tail gas pipeline, the output end of the furnace top temperature sensor 4, the output end of the furnace top pressure sensor 5 and the output end of the furnace layer temperature sensor 6 are all electrically connected with the input end of a PLC 12, the output end of the PLC 12 is respectively electrically connected with the input end of the feeding electric control metering valve 16 and the input end of the tail gas control, the working process of the temperature control unit of the tower distillation furnace comprises the steps of constantly monitoring the temperature of the inner furnace top of the tower distillation furnace through a furnace top temperature sensor 4, constantly monitoring the pressure of the inner furnace top of the tower distillation furnace through a furnace top pressure sensor 5, transmitting temperature and pressure data to a PLC (programmable logic controller) 12, when the pressure of the furnace top of the tower distillation furnace is greater than 0.5kPa and the temperature of the furnace top is less than 200 ℃, the PLC 12 sends signals to a feeding electric control metering valve 16, the feeding amount is controlled by adjusting the discharging amount of the feeding electric control metering valve 16, the temperature of each furnace layer in the tower distillation furnace is constantly monitored through a furnace layer temperature sensor 6, the temperature data are transmitted to the PLC 12, and the PLC 12 sends signals to a tail gas control valve 17 according to the temperature, automatically adjusts the gas output amount of tail gas CO of each furnace layer, and further changes the temperature.
As shown in fig. 1-2, the phosphorus outlet temperature control unit comprises a phosphorus outlet temperature sensor 7, a phosphorus outlet pressure sensor 8 and an alarm unit 18, the phosphorus outlet temperature sensor 7 and the phosphorus outlet pressure sensor 8 are both arranged in the phosphorus outlet confluence pipeline, the output end of the phosphorus outlet temperature sensor 7 and the output end of the phosphorus outlet pressure sensor 8 are both electrically connected with the input end of the PLC controller 12, the output end of the PLC controller 12 is electrically connected with the input end of the alarm unit 18, the phosphorus outlet temperature control unit works in such a way that the temperature in the phosphorus outlet confluence pipeline is constantly monitored by the phosphorus outlet temperature sensor 7, the pressure in the phosphorus confluence pipeline is constantly monitored by the phosphorus outlet pressure sensor 8, and temperature and pressure data are transmitted to the PLC controller 12, when the temperature in the phosphorus outlet confluence pipeline is reduced to below 80 ℃, and the water vapor pressure in the phosphorus outlet confluence pipeline is greater than 2kPa, the PLC controller 12 controls the alarm unit 18 to transmit an alarm signal.
Wherein as shown in fig. 1 ~ 2, the temperature control unit of slagging tap is including slagging tap temperature sensor 9, motor current sensor 10 and alarm unit 18, it all sets up in the spiral to slag tap temperature sensor 9 and motor current sensor 10, the output of slagging tap temperature sensor 9 and the output of motor current sensor 10 all with PLC controller 12's input electric connection, the working process of the temperature control unit of slagging tap is, constantly monitor the temperature of the spiral of slagging tap through slagging tap temperature sensor 9, constantly monitor the motor current of the spiral of slagging tap through motor current sensor 10, and give PLC controller 12 with temperature and motor current data transmission, the temperature of the spiral of slagging tap reduces to below 60 ℃, when the motor current of the spiral of slagging tap surpasss operating current 30%, PLC controller 12 controls alarm unit 18 and sends alarm signal.
Wherein, as shown in figures 1-2, the temperature control unit of the phosphorus collecting tank comprises a temperature sensor 11 of the phosphorus collecting tank and a steam control valve 19 of the phosphorus collecting tank, the temperature sensor 11 of the phosphorus collecting tank is arranged in the phosphorus collecting tank, the steam control valve 19 of the phosphorus collecting tank is arranged on a steam pipeline, the output end of the temperature sensor 11 of the phosphorus collecting tank is electrically connected with the input end of a PLC 12, the output end of the PLC 12 is electrically connected with the input end of the steam control valve 19 of the phosphorus collecting tank, the phosphorus collecting tank is heated by adopting steam, the temperature of the phosphorus collecting tank is ensured to be more than or equal to 60 ℃, the working process of the temperature control unit of the phosphorus collecting tank is as follows, receive the inside temperature of phosphorus jar through receiving phosphorus jar temperature sensor 11 constantly monitoring to give PLC controller 12 with temperature data transmission, PLC controller 12 is according to the temperature height, and the automatic adjustment steam size is received to receiving phosphorus jar steam control valve 19 to the temperature of adjusting in the phosphorus jar.
As shown in FIG. 2, the PLC 12 is arranged in a PLC control cabinet near the tower distillation furnace, the PLC 12 is connected with an operator station 20 through an Ethernet, and the PLC 12 is connected with each sensor and execution component through a Profibus-DP field bus.
As shown in fig. 3, the alarm unit 18 includes a field voice alarm module 1801, an operator station voice alarm module 1802, and a short message sending module 1803, the field voice alarm module 1801 is disposed on the top of a PLC control cabinet near the tower distillation furnace, the operator station voice alarm module 1802 is disposed in the operator station 20, the short message sending module 1803 is disposed in the PLC control cabinet, and the voice alarm outputs a fault audio file to accurately prompt what fault occurs in the device, so that the device management is more convenient.
According to the invention, the temperature of the phosphorus mud tank, the temperature of the feeding barrel, the temperature of the tower type distillation furnace, the phosphorus discharging temperature, the slag discharging temperature and the temperature of the phosphorus collecting tank are controlled by adopting the PLC control system, the temperature data are monitored by each sensor, the monitored data signals are sent to the PLC controller 12, and the PLC controller 12 is used for finishing data processing, so that the centralized display, the centralized operation, the centralized management and the decentralized control of the temperature are realized, the technological parameters for recovering yellow phosphorus are kept in the optimal range, and the yellow phosphorus recovery efficiency and the recovery quality are improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modifications to the technical solutions described in the above embodiments, and equivalents of some technical features are included in the scope of the present invention.
Claims (8)
1. Automatic control system of phosphorus mud distillation temperature, including phosphorus mud jar temperature control unit, throw storage bucket temperature control unit, tower distillation furnace temperature control unit, go out phosphorus temperature control unit, the temperature control unit of slagging tap and receive phosphorus jar temperature control unit, its characterized in that: the temperature control unit of the phosphorus mud tank comprises a phosphorus mud tank temperature sensor (1) and a phosphorus mud tank steam control valve (13), wherein the phosphorus mud tank temperature sensor (1) is arranged inside the phosphorus mud tank, the phosphorus mud tank steam control valve (13) is arranged on a steam pipeline, the output end of the phosphorus mud tank temperature sensor (1) is electrically connected with the input end of a PLC (programmable logic controller) (12), the output end of the PLC (12) is electrically connected with the input end of the phosphorus mud tank steam control valve (13), and the phosphorus mud tank is heated by adopting steam, so that the temperature of the phosphorus mud tank is kept at 70-85 ℃, and is kept warm for 24 hours;
the feeding barrel temperature control unit comprises a feeding barrel temperature sensor (2), a feeding barrel concentration sensor (3), a jacket electric heating assembly (14) and a phosphorus pumping pump (15), the feeding barrel temperature sensor (2) and the feeding barrel concentration sensor (3) are both arranged in the feeding barrel, the jacket electric heating component (14) is sleeved on the outer surface of the feeding barrel, the phosphorus pumping pump (15) is arranged on a pipeline between the feeding barrel and the phosphorus sludge tank, the output end of the feeding barrel temperature sensor (2) and the output end of the feeding barrel concentration sensor (3) are both electrically connected with the input end of the PLC (12), the output end of the PLC (12) is electrically connected with the input end of the jacket electric heating assembly (14) and the input end of the phosphorus pumping pump (15) respectively, and the feeding barrel is heated by a jacket heating method to ensure that the temperature of the feeding barrel is kept at 70-85 ℃;
the temperature control unit of the tower distillation furnace comprises a furnace top temperature sensor (4), a furnace top pressure sensor (5), a furnace layer temperature sensor (6), a feeding electric control metering valve (16) and a tail gas control valve (17), wherein the furnace top temperature sensor (4) and the furnace top pressure sensor (5) are arranged on the furnace top of the tower distillation furnace, the furnace layer temperature sensor (6) is arranged on each furnace layer inside the tower distillation furnace, the feeding electric control metering valve (16) is arranged on a pipeline between the tower distillation furnace and a feeding barrel, the tail gas control valve (17) is arranged on a CO tail gas pipeline, the output end of the furnace top temperature sensor (4), the output end of the furnace top pressure sensor (5) and the output end of the furnace layer temperature sensor (6) are electrically connected with the input end of a PLC (12), and the output end of the PLC (12) is respectively electrically connected with the input end of the feeding metering valve (16) and the input end of the tail gas control valve (17) The input end is electrically connected;
the phosphorus outlet temperature control unit comprises a phosphorus outlet temperature sensor (7), a phosphorus outlet pressure sensor (8) and an alarm unit (18), the phosphorus outlet temperature sensor (7) and the phosphorus outlet pressure sensor (8) are both arranged in a phosphorus outlet confluence pipeline, the output end of the phosphorus outlet temperature sensor (7) and the output end of the phosphorus outlet pressure sensor (8) are both electrically connected with the input end of a PLC (12), and the output end of the PLC (12) is electrically connected with the input end of the alarm unit (18);
the slag discharging temperature control unit comprises a slag discharging temperature sensor (9), a motor current sensor (10) and an alarm unit (18), the slag discharging temperature sensor (9) and the motor current sensor (10) are both arranged in a slag discharging screw, and the output end of the slag discharging temperature sensor (9) and the output end of the motor current sensor (10) are both electrically connected with the input end of the PLC (12);
the phosphorus recovery tank temperature control unit comprises a phosphorus recovery tank temperature sensor (11) and a phosphorus recovery tank steam control valve (19), the phosphorus recovery tank temperature sensor (11) is arranged in a phosphorus recovery tank, the phosphorus recovery tank steam control valve (19) is arranged on a steam pipeline, the output end of the phosphorus recovery tank temperature sensor (11) is electrically connected with the input end of a PLC (programmable logic controller) (12), the output end of the PLC (12) is electrically connected with the input end of the phosphorus recovery tank steam control valve (19), and the phosphorus recovery tank is heated by adopting steam to ensure that the temperature of the phosphorus recovery tank is not lower than 60 ℃;
the PLC (12) is arranged in a PLC control cabinet near the tower distillation furnace, the PLC (12) is connected with an operator station (20) through an Ethernet, and the PLC (12) is connected with each sensor and each execution component through a Profibus-DP field bus.
2. The automatic mud phosphorus distillation temperature control system as claimed in claim 1, wherein the mud phosphorus pot temperature control unit is operated by constantly monitoring the temperature in the mud phosphorus pot by the mud phosphorus pot temperature sensor (1) and transmitting the temperature data to the PLC controller (12), and the PLC controller (12) sends a signal to the mud phosphorus pot steam control valve (13) according to the temperature, so as to automatically adjust the steam size and further adjust the temperature in the mud phosphorus pot.
3. The automatic mud phosphorus distillation temperature control system as claimed in claim 1, wherein the operation process of the charging barrel temperature control unit is, the temperature of the phosphorus sludge overflow slurry in the feeding barrel is constantly monitored by a temperature sensor (2) of the feeding barrel, the concentration of the slurry overflowing the phosphorus sludge in the charging bucket is constantly monitored by a charging bucket concentration sensor (3), the temperature and concentration data are transmitted to a PLC (programmable logic controller) (12), when the concentration of the slurry overflowing from the mud phosphorus in the feeding barrel reaches 20 percent and the temperature is lower than 60 ℃, the PLC (12) sends a signal to the phosphorus pump (15), stops the phosphorus pump (15), starts the jacket electric heating assembly (14), adjusts the temperature in the feeding barrel, when the pressure in the feeding barrel reaches-0.3 kPa, meanwhile, the pressure in the tower distillation furnace rises to be more than 0.3kPa, and the PLC (12) controls the phosphorus pumping pump (15) to be automatically started.
4. The automatic control system for the distillation temperature of the phosphorous sludge as claimed in claim 1, wherein the temperature control unit of the tower distillation furnace is operated by constantly monitoring the temperature of the internal furnace top of the tower distillation furnace by the furnace top temperature sensor (4), constantly monitoring the pressure of the internal furnace top of the tower distillation furnace by the furnace top pressure sensor (5) and transmitting the temperature and pressure data to the PLC controller (12), when the pressure of the tower distillation furnace is greater than 0.5kPa and the temperature of the furnace top is less than 200 ℃, the PLC controller (12) sends a signal to the feeding electric control metering valve (16), controls the feeding amount by adjusting the discharging amount of the feeding electric control metering valve (16), constantly monitors the temperature of each furnace layer in the tower distillation furnace by the furnace layer temperature sensor (6) and transmits the temperature data to the PLC controller (12), and the PLC controller (12) controls the feeding amount according to the temperature, and sending a signal to a tail gas control valve (17), automatically adjusting the gas output of the tail gas CO of each furnace layer, and further changing the temperature.
5. The automatic sludge phosphorus distillation temperature control system as claimed in claim 1, wherein the phosphorus outlet temperature control unit works by monitoring the temperature in the phosphorus confluence pipeline at any time through the phosphorus outlet temperature sensor (7), monitoring the pressure in the phosphorus confluence pipeline at any time through the phosphorus outlet pressure sensor (8), transmitting the temperature and pressure data to the PLC (12), and controlling the alarm unit (18) to send an alarm signal by the PLC (12) when the temperature in the phosphorus confluence pipeline is reduced to be below 80 ℃ and the water vapor pressure in the phosphorus confluence pipeline is greater than 2 kPa.
6. The automatic sludge phosphorus distillation temperature control system as claimed in claim 1, wherein the slag tapping temperature control unit works by constantly monitoring the temperature of the slag tapping screw through the slag tapping temperature sensor (9), constantly monitoring the motor current of the slag tapping screw through the motor current sensor (10), transmitting the temperature and motor current data to the PLC (12), and when the temperature of the slag tapping screw is reduced to below 60 ℃ and the motor current of the slag tapping screw exceeds 30% of the working current, the PLC (12) controls the alarm unit (18) to send an alarm signal.
7. The automatic sludge phosphorus distillation temperature control system as claimed in claim 1, wherein the phosphorus receiving tank temperature control unit is operated by constantly monitoring the temperature inside the phosphorus receiving tank by the phosphorus receiving tank temperature sensor (11) and transmitting the temperature data to the PLC controller (12), and the PLC controller (12) sends a signal to the phosphorus receiving tank steam control valve (19) according to the temperature, so as to automatically adjust the steam size and further adjust the temperature inside the phosphorus receiving tank.
8. The automated mud phosphorus distillation temperature control system according to claim 1, wherein the alarm unit (18) comprises a field voice alarm module (1801), an operator station voice alarm module (1802) and a short message sending module (1803), the field voice alarm module (1801) is arranged at the top of a PLC control cabinet near the tower type distillation furnace, the operator station voice alarm module (1802) is arranged in an operator station (20), and the short message sending module (1803) is arranged in the PLC control cabinet.
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| CN202011462502.8A CN112506158A (en) | 2020-12-14 | 2020-12-14 | Automatic mud phosphorus distillation temperature control system |
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Application publication date: 20210316 |