Air Monitoring 31 World class oxygen analysis technology enables optimal combustion
effi ciency and compliance with international, environmental legislation Fuji Electric offer an oxygen analyser modular platform, built around zirconia sensor technology, which provides the perfect solution for combustion control in boilers, incinerators and furnaces. This cutting-edge device facilitates the reduction of CO2
, CO, SOx, and NOx emissions and saves energy – and extends the combustions plant’s longevity.
Fuji’s analyser is widely used to continuously measure oxygen concentration in combustion exhaust gas emitted from industrial boilers and furnaces. It is ideal for combustion management and control, in applications such as waste incinerators as well as all sizes of boilers, to control combustion and therefore enable a considerable reduction in energy costs.
This instrument’s measurement principal is based around zirconium oxide, that conducts oxygen ions when heated. The analyser measures oxygen concentration by sensing the electromotive force generated by the difference of oxygen concentration in air and the sample gas.
Fuji have years of experience in providing state-of-the-art instrumentation suited for some of the harshest environmental and industrial conditions. Their technology is ubiquitous in some of the most demanding industries such as steel, petroleum and petrochemical, energy, ceramics, food and beverage, paper and pulp and textiles.
This versatile and highly user-friendly analyser platform transmits measurement data securely and reliably via the new Hart Protocol with RS-485 standard electrical signalling. It has been designed to facilitate the reduction of excess air in the combustion process, which leads to a signifi cant reduction in costs by enhancing combustion effi ciency. The zirconia sensor, which has a signifi cantly longer life expectancy than others of its kind, is quick and easy to replace, which means far less maintenance and its associated delays. No air supply or fl ue gas extraction is required – and the instrument typically generates measurement data within 4-7 seconds, as well as performing predictive and advanced diagnostics.
This device also includes several important safety features. The converter shuts down the power supply to the detector if a thermocouple burnout is detected, it can also be quickly and easily cut off in emergencies and a key lock facility signifi cantly reduces the probability of operator error.
See more details on Fuji Electric website and watch how the ZKM/ZFK8 oxygen zirconia analyser platform helps the users optimise their process and save costs.
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New compact air quality monitoring station
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ABB’s next generation probe helps cement
industry increase safety and sustainability in kilns • The European Cement Association estimates that 95 percent of traditional fuels used in Cement production can be replaced with alternative fuels and raw materials (AFR) to help reduce emissions • Higher use of AFR brings an increased risk of explosions which in turn cause kiln stops raising costs
• ABB is launching the ProKiln inlet gas sampling system to meet these and other challenges, increasing clinker quality and output, reducing harmful emissions by enabling measurement of alternative fuels, decreasing maintenance costs of plant infrastructure and preventing plant downtime
• Cement is a highly energy intensive industry, with production on the increase to meet demand and over 4.3 gt of cement produced globally in 2020. As governments focus on reducing emissions, cement plant owners are seeking alternative fuels (AFR), new processes and additives as a means of reducing their environmental impact. This approach brings new industry challenges. The increased use of AFR can lead to dangerous pockets of incomplete combustion within a kiln and an increase of vaporized volatile gases leading to an increased risk of explosion and costly kiln stoppage.
ABB has developed ProKiln, a gas sampling system, to meet these challenges head on, offering permanent and uninterrupted process control in cement rotary kilns. The new cement kiln inlet gas system features powerful probe cleaning with increased mechanical strength, which includes a dual probe retraction system unique to the market to ensure no sampling interruption.
The ProKiln has an extractive fi lter in the tip of the probe which separates sample gas from the dust load avoiding scaling. In addition, the ProKiln’s patented technology uses two air blasters to clean the tip of the probe maintaining a sample path for critical analysis even under extreme conditions.
The system is mounted on a buggy running on a retractor which carries the probe safely in and out of the kiln allowing it to be cleaned automatically. A cooling system provides recirculating water for temperature control, essential in operating conditions where process gases can reach 1200° C (2200°F).
ProKiln has been trialled at Holcim, the world’s largest cement producer. The test ran for 6 months at their Lägerdorf plant that uses more than 80 percent alternative fuels. The reduced maintenance efforts and the increased availability convinced the customer to replace the current installation with ProKiln.
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On 9 June, Kunak offi cially presented the new Kunak AIR Lite air quality measurement station. Its small size and focus on measuring two pollutants using the revolutionary removable cartridge system, in addition to the optical particle counter, is the answer to a market that demands simple but reliable air quality monitoring systems.
This new product is characterised by the quality of the data it provides. Achieving the highest level of excellence in this respect is one of Kunak’s hallmarks and a quality that has been recognised on the international scene with numerous awards.
The Kunak AIR Lite can also support different types of external probes such as anemometers and rain gauges, a key factor in the fi eld of air quality, or sound level meters to monitor noise levels, among others.
The collected data is also sent to the Kunak Cloud web platform for visualisation and analysis, or via API to third-party platforms.
The Kunak AIR Lite station is able to meet the monitoring needs of urban areas, industrial areas or WWTP, positioning Kunak, once again, as one of the leading companies in the world of air quality monitoring.
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