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 ZT372a-E
Display operation panel ZMU-02内存卡
Display operation panel YYT107A
Display operation panel YYT102N
Display operation panel YYT102M
Display operation panel YYT102D
Display operation panel YYT102C
Display operation panel YYE109A
Display operation panel YXU168E YT204001-JB/1
Display operation panel YXU168E
Display operation panel YXU168E
Display operation panel YXI115B
Display operation panel YXE152A YT204001-AF
Display operation panel YXE152A
Display operation panel YXC110
Display operation panel YTEA250-8
Display operation panel YTEA250-15
Display operation panel YTE102C
Display operation panel YTE102B
Display operation panel YTE102A
Display operation panel YT296000-RX
Display operation panel YT296000-MZ
Display operation panel YT296000-MC
Display operation panel YT221001-LS
Display operation panel YT213001-BC
Display operation panel YT213001-AB
Display operation panel YT213001-AA
Display operation panel YT212002/AD
Display operation panel YT204001-KE
Display operation panel YT204001-KB
Display operation panel YT204001-JK
Display operation panel YT204001-JB/1
Display operation panel YT204001-HS
Display operation panel YT204001-FV
Display operation panel YT204001-FR
Display operation panel YT204001-FL
Display operation panel YT204001-FD
Display operation panel YT204001-FC1
Display operation panel YT204001-FB
Display operation panel YT204001-FB
Display operation panel YT204001-EG
Display operation panel YT204001-DT
Display operation panel YT204001-CV
Display operation panel YT204001-CN/4
Display operation panel YT204001-BL
Display operation panel YT204001-AL
Display operation panel YT204001-AF
Display operation panel YT204001-AF
Display operation panel YPQ112A
Display operation panel YPQ112A
Display operation panel YPQ111A
Display operation panel YPQ111A
Display operation panel YPQ110A 3ASD573001A5
Display operation panel YPQ110A 3ASD573001A5
Display operation panel YPQ109B 3ASD510001C20
Display operation panel YPQ108A
Display operation panel YPQ104A
Display operation panel YPQ104A
Display operation panel YPQ-101E
Display operation panel YPQ101E
Display operation panel YPP110A 3ASD573001A1
Display operation panel YPP110A 3ASD573001A1
Display operation panel YPP109A
Display operation panel YPP109A
Display operation panel YPP105B
Display operation panel YPP105B
Display operation panel YPK117A 61163280
Display operation panel YPK117A
Display operation panel YPK117A
Display operation panel YPK113A
Display operation panel YPK113A
Display operation panel YPK112A
Display operation panel YPK112A
Display operation panel YPK110A
Display operation panel YPK107E
Display operation panel YPI103E
Display operation panel YPI103E
Display operation panel YPH108B/SPC
Display operation panel YPH108B/SPC
Display operation panel YPH107A
Display operation panel YPH107A
Display operation panel YPG108E
Display operation panel YPC104B YT204001-BT
Display operation panel YPC104B
Display operation panel YPC104B
Display operation panel YM322001-EG
Display operation panel YM322001-EG
Display operation panel YM318001-CN
Display operation panel YM318001-CN
Display operation panel YM110001-SN
Display operation panel YM110001-SN
Display operation panel YL621001-BB
Display operation panel YL621001-BB
Display operation panel YB560103-BR
Display operation panel YB560103-BR
Display operation panel YB560103-BN
Display operation panel YB560103-AP
Display operation panel YB560100-EAS3
Display operation panel YB560100-EA
Display operation panel YB560100-EA
Display operation panel XVC772A102 3BHE032285R0102
Display operation panel XVC770BE102 3BHE021083R0102
Display operation panel XVC770BE101 3BHE021083R0101
Display operation panel XVC770BE101 3BHE021083R0101
Display operation panel XVC770BE101
Display operation panel XVC770AE 3BHE006414R0001
Display operation panel XVC770AE 3BHE006414R0001
Display operation panel XVC769AE101 3BHE006373R0101
Display operation panel XVC769AE101 3BHE006373R0101
Display operation panel XVC769AE101 3BHE006373R0101
Display operation panel XVC769AE101
Display operation panel XVC769AE101
Display operation panel XVC768AE117 3BHB007211R0117
Reviews
There are no reviews yet.