Tangshan Iron and Steel Group Company
Basic customer needs:
The application for a customer performance rating of A requires professional guidance in areas such as unorganized emissions, organized emissions, and clean transportation;
Regarding organized emissions, the enterprise currently has more than 60 pollution source discharge outlets. It is necessary to investigate the installation and operation of automatic online monitoring equipment in accordance with relevant legal regulations, identify potential problems or hidden dangers, sort out and analyze them, and propose suggestions and solutions;In order to enhance one's management level in online monitoring, specialized training in knowledge related to online monitoring is required;The long process for steel customers includes:
Production processes such as sintering, pelletizing, blast furnace, converter, hot blast furnace, heating furnace, lime kiln, etc.
Flue Gas Treatment Procedure：
Electrostatic precipitator, CFB, SCR, bag type dust removal, etc.
CEMS system：
SCS-900, LV-EM-1000, CEMS-2000, and other cold dry and hot wet systems.
1. Based on customer needs, we propose an "online monitoring and precise management overall consultation" service for customers, which includes: full site investigation services, key production process "four simultaneities" diagnostic services, third-party service supervision and assessment, and customized professional knowledge training services.
2. Based on the on-site site investigation, many rectification suggestions have been proposed regarding the standardization of CEMS installation and the performance of third-party service units; Based on the analysis of CEMS operation, some points have the following situations.
Long response time for full calibration; On-site SO ₂ data has been zero for a long time;Ammonium salt crystals in the pipeline;Full calibration failed。
Based on a detailed analysis of the above situation, it was found that the main cause of the problem is the influence of ammonia and moisture in the exhaust gas; To this end, we propose to the customer a solution of installing a pre treatment system for ammonia removal and dehumidification at the original position of the probe.
3. After the customer adopted the above suggestions, the PreGASS2500+PreGASS9500 ammonia removal and dehumidification pre-treatment system was installed at the relevant problem location, and the effect was significant, fully meeting the HJ75/76-2017 standard. The actual effect is as follows:
Reduce the dew point of flue gas to below -15 ℃; Full calibration response time<180 seconds, indication error ≤ 2% F.S;Escaped ammonia is completely removed, and there is no ammonium salt crystallization in the pipeline;The entire process calibration passed smoothly;The dehumidification efficiency exceeds 98%, and the CEMS system runs smoothly;The on-site SO ₂ data is stable and fluctuates with the process, without "0";
