Description
Coke oven is a key in the coking industry. The temperature in the oven directly affects the quality of the refining coke. Therefore, we must ensure that the temperature in the oven is
stable within a reliable range. Therefore, we must control the pressure in the coke oven flue and gas main pipe. We adopt a composite control method, that is, feedforward plus feedback/manual switching to achieve control requirements. The liquid level in the elution benzene condensate storage tank, the temperature at the top of the ammonium distillation tower and the pH value of the ammonium water are automatically adjusted. Since the SP value (set value) of many adjustment loops is an uncertain number , need to be based on different requirements in different periods; in the design of PID adjustment and manual/automatic switching, we designed the SP to track the PV when manual,
and adjust the process value according to the SP value during automatic switching, so that when the operator switches from manual Switch the adjustment process value to automatic and you
can adjust it immediately with this process value. It is conducive to operators to further explore ways to improve work efficiency.
On the operation interface of the operator station, trend charts of important variables such as “ammonium distillation tower bottom pressure” and “regeneration tower liquid level” are created, which
is helpful for operators to intuitively observe the changing trends of important data. We use the signal sequence function to record the changing process of each operation. Its fastest scanning period is
two milliseconds, so that we can clearly remember the changing sequence of data. When an accident occurs, we can refer to these data to analyze the cause of the accident. . We have also created a
database to cumulatively record important variables in the process of “coal preparation”, “coke screening”, “tank area”, etc. Enterprises can analyze the production process based on the data, optimize the production process, and continuously improve efficiency.
The OPC standard software interface is designed in the system, which provides the basis for the enterprise”s on-site data management. At the same time, it provides guarantee for enterprises to realize information management.
7. Summary
Now the plant has been put into production. According to the design requirements, the entire system is designed to produce 1 million tons of coke per year. The DCS control system provides guarantee
for achieving this goal. The ABB AC800F distributed control system operates stably and reliably, and at the same time brings convenience to the enterprise”s information management. Practice has proven
that the DCS control system has made contributions to improving labor productivity, improving product quality, and avoiding accidents. It has brought considerable economic benefits to the enterprise and achieved user satisfaction.
Excitation system ABB module PM510V16
Excitation system ABB module PM510V16
Excitation system ABB module PM510V16
Excitation system ABB module PM510V08
Excitation system ABB module PM210
Excitation system ABB module PM152 3BSE003643R1
Excitation system ABB module PM150V08 3BSE009598R1
Excitation system ABB module PM150V08 3BSE009598R1
Excitation system ABB module PL810
Excitation system ABB module PKSF102
Excitation system ABB module PIO800K02
Excitation system ABB module PIB671-150
Excitation system ABB module PHKRMPBA2000A
Excitation system ABB module P-HC-PLT-20221100
Excitation system ABB module P-HC-PLT-10111100
Excitation system ABB module P-HC-DOC-22021000
Excitation system ABB module P-HC-DOC-22011000
Excitation system ABB module P-HC-DOC-11011000
Excitation system ABB module P-HC-DOC-0001000
Excitation system ABB module P-HC-DOC-00001000
Excitation system ABB module PHCBRCPBA20000
Excitation system ABB module PHCBRCPBA20000
Excitation system ABB module PHCBRCPBA10000
Excitation system ABB module P-HC-BRC-40000000
Excitation system ABB module PHCBRC40000000
Excitation system ABB module PHCBRC300P-HC-BRC-300
Excitation system ABB module P-HC-BRC-30000000
Excitation system ABB module PHCBRC30000000
Excitation system ABB module P-HC-BRC-10000000
Excitation system ABB module P-HC-BRC-10000000
Excitation system ABB module PHBSIM10010000
Excitation system ABB module PHBSIM1000C100
Excitation system ABB module P-HB-RMU-8000N200
Excitation system ABB module P-HB-RMU-11010000
Excitation system ABB module PHBRMU10010000
Excitation system ABB module PHBRMU1000N200
Excitation system ABB module PHBRMU1000N100
Excitation system ABB module PHBRLY20000000
Excitation system ABB module P-HB-IOR-80010000
Excitation system ABB module P-HB-IOR-8000N200
Excitation system ABB module P-HB-IOR-8000N200
Excitation system ABB module P-HB-FIO-1000C100
Excitation system ABB module PHBDOT1200S100
Excitation system ABB module P-HB-DOT-1200K100
Excitation system ABB module P-HB-DOT-1200C100
Excitation system ABB module PHBDOT1000S100
Excitation system ABB module PHBDIO4000S200
Excitation system ABB module PHBDIO4000S100
Excitation system ABB module PHBDIO4000R100
Excitation system ABB module PHBDIO4000C200
Excitation system ABB module PHBDIO4000C100
Excitation system ABB module PHBCIO1000S100
Excitation system ABB module PHBCIO1000C100
Excitation system ABB module PHBBLK10010000
Excitation system ABB module PHBBLK10000100
Excitation system ABB module PHBAOT1500S100
Excitation system ABB module PHBAOT1500C200
Excitation system ABB module P-HB-AOT-1500C100
Excitation system ABB module P-HB-AIN-3000S200
Excitation system ABB module P-HB-AIN-3000S100
Excitation system ABB module P-HB-AIN-3000K100
Excitation system ABB module P-HB-AIN-3000C100
Excitation system ABB module PHBAIN2200S200
Excitation system ABB module PHBAIN2200S100
Excitation system ABB module PHBAIN2200C200
Excitation system ABB module PHBAIN2200C100
Excitation system ABB module PHBAIN12010000
Excitation system ABB module PHBAIN1200S200
Excitation system ABB module PHBAIN1200S100
Excitation system ABB module PHBAIN1200C100
Excitation system ABB module P-HA-RPS-PEP21013
Excitation system ABB module PHARPSPEP11013
Excitation system ABB module PHARPSFAN03000
Excitation system ABB module PHARPSFAN03000
Excitation system ABB module PHARPSFAN03000
Reviews
There are no reviews yet.