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Denitrification PLC system for the SCR denitrification renovation project of the flue gas at the tail of the first kiln of a cement company in Xianyang
Customer Pain Points
NOx emissions from cement kiln tail gas exceed the standard
Industry
Cement production line
Device Type
Construction Equipment
HDIC Service
Control cabinet customization
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Customer Needs
Ammonia consumption reduced by 15%
Catalyst replacement cycle extended by 10%
Comprehensive operating cost savings
Solutions and Implementation
Customized solution design
According to the control requirements of on-site working conditions, it is equipped with an ammonia injection control subsystem, a zoning adjustment strategy, and a safety interlock system to achieve reliable control under high dust and high temperature conditions; ammonia escape control; and rapid response to frequent fluctuations in kiln working conditions.
Special design of control cabinet
Dust-proof and heat-dissipating:Protection level up to IP55 or above Wiring specifications:Power cables and signal cables are arranged in layers, twisted pair shielded cables, high temperature resistance
Key points for installation and debugging
Cold test:All IO point channel tests, valve stroke calibration, communication verification Hot debugging:Ammonia spray grid uniformity test, no-load temperature rise curve test, 72-hour continuous operation test Training services:Provide PLC programming, HMI operation, and troubleshooting manuals
Customer Feedback
"The NOx removal efficiency is high, the emission concentration can reach below 50mg/Nm³, the ammonia escape is <5mg/Nm³, and the ammonia consumption per ton of clinker is less than 4kg. The operation is safe, stable and reliable, easy to control, with low investment cost, low operating cost, small footprint, low construction difficulty and short construction period."
