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.
Display operation panel IISACO1
Display operation panel IISAC01
Display operation panel IISAC01
Display operation panel IIPLM01
Display operation panel IIMTM01
Display operation panel IIMSM01
Display operation panel IIMRM02
Display operation panel IIMRM01
Display operation panel IIMPM02
Display operation panel IIMPM01
Display operation panel IIMLM01
Display operation panel IIMKM02A
Display operation panel IIMKM02
Display operation panel IIMKM01A
Display operation panel IIMKM01
Display operation panel IIMGC04
Display operation panel IIMGC03
Display operation panel IIMGC02
Display operation panel IIMGC01
Display operation panel IIMCP02
Display operation panel IIMCP01
Display operation panel IIMCL01
Display operation panel IIEDI01
Display operation panel IIAMS01
Display operation panel IIADP02
Display operation panel IIADP01
Display operation panel IEPWM02
Display operation panel IEPU02
Display operation panel IEPRD01
Display operation panel IEPMU01
Display operation panel IEPEP07
Display operation panel IEPEP04
Display operation panel IEPEP03
Display operation panel IEPEP01
Display operation panel IEPDS02
Display operation panel IEPDS01
Display operation panel IEPDP01
Display operation panel IEPBM01
Display operation panel IEPAS02
Display operation panel IEPAS02
Display operation panel IEPAS01
Display operation panel IEPAS01
Display operation panel IEPAF02
Display operation panel IEPAF01
Display operation panel IEMMU22
Display operation panel IEMMU21
Display operation panel IEMMU21
Display operation panel IEMMU21
Display operation panel IEMMU21
Display operation panel IEMMU12
Display operation panel IEMMU11
Display operation panel IEMMU04
Display operation panel IEMMU02
Display operation panel IEMMU01
Display operation panel IEMMU01
Display operation panel IEFAN90
Display operation panel IEFAN02
Display operation panel IEFAN01
Display operation panel IDPG 940128102
Display operation panel ICST08A9
Display operation panel ICSK20F1
Display operation panel ICSE08B5
Display operation panel ICSE08B5
Display operation panel ICSA04B5
Display operation panel IBA 940143201
Display operation panel IAM MODULE
Display operation panel HVC-02B 3HNA024966-00103
Display operation panel HVC-02 3HNA011999-001
Display operation panel HVC-01 2A 3HNA008270-001
Display operation panel HPC800K02
Display operation panel HIES207036R003
Display operation panel HIER466665R0099
Reviews
There are no reviews yet.