Coal-fired Thermal Power Plants,Iron and Steel Metallurgy Sector,Chemical and Petrochemical Sectors,Municipal Solid Waste and Hazardous Waste Incineration Sector.
- Pollutant Removal Efficiency (Core Performance Indicator)
- Desulfurization Efficiency: It measures the ability of equipment to remove sulfur dioxide (SO2) from flue gas. The designed efficiency of mainstream technologies (such as the limestone-gypsum method and ammonia method) is usually ≥ 95%, and high-quality equipment can stably achieve over 98%. Special attention should be paid to the deviation between the "actual operating efficiency" and "designed efficiency" (the deviation should be ≤ 3%; otherwise, emission non-compliance may occur due to poor adaptability to working conditions).
- Denitrification Efficiency: It refers to the ability to remove nitrogen oxides (NOx). The efficiencies of mainstream selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) are 80%-90% and 30%-60% respectively. The difference in efficiency mainly depends on catalyst activity (for SCR) and reducing agent injection accuracy (for SNCR). The selection should be based on the project's emission requirements (e.g., the power industry requires ≥ 85%, while the chemical industry can relax the requirement to over 70%).
- Synergistic Treatment Capacity: Some integrated equipment can simultaneously remove dust and heavy metals (such as mercury). It is necessary to evaluate their "synergistic removal efficiency of multiple pollutants" to avoid the need for additional equipment in the later stage due to strong single-function performance but poor synergistic effect.
- Operational Stability and Reliability
- Continuous Operation Duration: Industrial-grade equipment should have an annual continuous operation time of ≥ 8,000 hours (approximately 333 days) and a shutdown frequency of ≤ 4 times per year. Shutdowns are mostly related to the service life of wearing parts (such as SCR catalysts and desulfurization tower spray layers). For high-quality equipment, the replacement cycle of wearing parts can be extended to 2-3 years (compared to about 1-1.5 years for ordinary equipment).
- Operating Condition Adaptability: The equipment must withstand fluctuations in flue gas volume, temperature, and pollutant concentration (e.g., in the thermal power industry, flue gas volume fluctuates by ±15% and temperature ranges from 120ºC to 180ºC). For equipment with stable performance, the fluctuation of removal efficiency should be ≤ 5% within the range of operating condition changes, so as to avoid emission non-compliance caused by sudden parameter changes.
- Energy and Material Consumption Levels (Economically Relevant Performance Indicators)
- Energy Consumption: It mainly includes power consumption of fans (accounting for 60%-70% of the total equipment energy consumption) and energy consumption of heating/cooling systems. Taking a 1000MW thermal power project as an example, the unit energy consumption of high-quality desulfurization and denitrification equipment can be controlled at 25-35 kWh per 10,000 cubic meters of flue gas, which is 15%-20% lower than that of ordinary equipment.
- Material Consumption: Desulfurization requires the consumption of absorbents (such as limestone and ammonia water), while denitrification requires the consumption of reducing agents (such as liquid ammonia and urea). Material consumption indicators are usually measured by "the amount of chemicals consumed per unit of pollutant removed" (e.g., desulfurizing agent consumption ≤ 0.15 kg/kg SO2, denitrifying reducing agent consumption ≤ 0.8 kg/kg NOx). The lower the material consumption, the more optimal the long-term operating costs.
- Operation and Intelligence Level
For enterprises with limited operation and maintenance (O&M) team capabilities, the "ease of operation" of equipment directly affects its practicality:
- Automated Control: High-quality equipment should be equipped with a PLC (Programmable Logic Controller) system to realize functions such as flue gas parameter monitoring, automatic adjustment of chemical dosage, and fault alarm, thereby reducing manual intervention. For example, when the SO2 concentration rises sharply, the system can automatically increase the absorbent injection volume to avoid emission non-compliance.
- Intelligent O&M: Some high-end equipment supports remote monitoring and predictive maintenance (real-time monitoring of catalyst activity and equipment corrosion degree through sensors to provide early fault warnings). This can shorten the O&M response time to 1-2 hours and reduce the risk of sudden shutdowns, making it particularly suitable for projects in remote areas or with insufficient O&M personnel.
The scenario adaptation of desulfurization and denitrification technologies essentially lies in the matching of three factors: "flue gas characteristics → emission requirements → cost budget":
- For flue gas with high concentration and large volume (e.g., thermal power, sintering) → select mature and high-efficiency technologies (limestone-gypsum method, SCR);
- For flue gas with high corrosiveness and high toxicity (e.g., chemical industry, hazardous waste incineration) → select anti-poisoning and synergistic treatment technologies (ammonia-based desulfurization, low-temperature SCR);
- For scenarios with small-scale flue gas and low-cost requirements (e.g., heating boilers) → select compact and low-operation-and-maintenance (low-O&M) technologies (semi-dry method, SNCR, low-nitrogen burners).
Only through precise scenario-based matching can the balance between "compliant emission" and "economic operation" be achieved.
Address: Huji Industrial Park, Deshang Expressway, Mudan District, Heze City, Shandong Province, China
Business type: Manufacturer/factory, trading company
Business scope: manufacturing and processing machinery
Management system certification: ISO9001:2015 ISO45001:2018 ISO14001:2015
Main products: Ground flare, Biogas flares, flare stack,
Thermal Oxidation Furnace, Flue gas purification equipment
Heze Zexuan Equipment Manufacturing Co., Ltd. is an enterprise engaged in the manufacture of special equipment for environmental protection; sales of special equipment for environmental protection; application of industrial automation technology; sales of power electronic components; research and development of mechanical equipment; sales of intelligent instruments and meters; manufacturing of intelligent instruments and meters; research and development and promotion of comprehensive utilization of waste gas and VOCs treatment technology.
The company's main products and service directions: manufacturing of ground torches, elevated torches, waste gas venting torches, biogas torches, three waste incinerators, and wastewater treatment equipment, industrial automation and DCS system applications, wastewater treatment projects, VOCs treatment equipment and engineering construction, petrochemical accessories and instrument sales, petrochemical equipment installation, maintenance and repair, etc.; support product customization services and OEM services in the same industry, from design to manufacturing, installation, commissioning, and after-sales one-stop service.
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