中文
EnglishThe Sequoia team has completed full-process thermal performance testing for more than 20 cement production lines.
Purposes of Thermal Calibration Testing
Thermal calibration testing enables accurate measurement of flue gas composition, flow rate, temperature, pressure, dust concentration, power consumption and other data at key process points, providing theoretical support for process evaluation, equipment assessment and technical upgrading.
- Quantify real-time production parameters and compare them against standard design benchmarks;
- Identify actual process defects based on measured data rather than empirical speculation, to facilitate targeted process adjustments and optimization;
- Generate actionable optimization solutions, quantify the energy-saving potential of each parameter adjustment, and formulate targeted maintenance schedules;
- Establish baseline thermal consumption for clinker calcination, and quantify changes in thermal consumption, power consumption and pollutant emissions before and after technical retrofits.
Main Scope of Thermal Calibration (Focus on Clinker Calcination System)
Preheater
Efficiency of high-temperature fans, air leakage of waste heat boilers, separation efficiency of Stage 1 cyclones, heat exchange performance and pressure drop of each preheater stage, air leakage at each stage, inlet and outlet gas velocity of each stage, and room for improvement in heat exchange and pressure loss reduction.
Calciner
Ventilation and combustion conditions, material residence time, throat velocity, hot meal circulation in smoke chamber, performance of staged combustion, and calciner volume demand for capacity expansion.
Rotary Kiln
In-kiln combustion conditions, volumetric load, burning zone thermal load, material residence time, bed filling rate, and variations in kiln speed and motor power after capacity expansion.
Burner
Primary air volume, flame momentum, geometric swirl number, coal conveying air flow rate and velocity.
Grate Cooler
Heat recovery efficiency, key influencing factors of heat recovery efficiency, operating efficiency of cooling fans, cooling air distribution, and cross-air leakage between air compartments.
Pollutant Control
Operating efficiency and influencing factors of existing SNCR systems, ammonia-to-nitrogen molar ratio, SNCR optimization strategies, formation mechanisms of sulfur dioxide, and applicable desulfurization technologies.
Raw Materials & Clinker
Stability of chemical composition of kiln feed, excess sulfur and sulfur-alkali ratio in clinker, liquid phase content of clinker, alkali, chlorine and sulfur contents in hot meal and corresponding process risks indicated by these indicators.
Power Consumption
Total power consumption of the calcination system, power consumption of core equipment and achievable power-saving margins.
Auxiliary Equipment
Operating status of air-locking valves, material splitting valves, feeding pipes, material dispersing boxes, expansion joints and other fittings.
Other Items
Efficiency and defects of bypass dust extraction systems, co-processing optimization for waste materials, efficiency of major fans, and other hidden issues within the calcination system.
Comments (0)