In concrete production the reliable monitoring of high level conditions in silos is an important aspect of inventory management of cement and flyash. If the level monitor fails to function properly, large costs due to overfilling of the silo can occur. This is why the SafePoint® self-validating point level sensor from Monitor Technologies is the best choice for concrete producers worldwide. The SafePoint incorporates the patented use of Hall-effect technology, dual outputs to indicate both material presence AND unit health, and microcontroller technology along with industry leading features of Monitor’s standard rotary paddle point level monitor, to continuously protect cement and flyash storage and processing from the effects of unknown sensor failure by providing immediate notification of a sensor failure and confirmation of proper operation.
Concrete producers worldwide use the SafePoint to reliably protect against overfilling. The SafePoint is a "true fail-safe" self-validating level sensor and can save maintenance and plant personnel time and help avoid the costs of these untimely spills and overfill conditions. The SafePoint level sensor detects electrical and mechanical failure modes that might keep the unit from operating properly. The SafePoint is a relatively low cost fail-safe level sensor, around $300 US, with state-of-the-art electronics and patented technology, industry-leading screw-on/off cover, two conduit entrances, local indication and separate outputs to continuously monitor it's health status as well as the presence and absence of process material. It is designed specifically for applications with powders and other bulk solids and can be provided for use in Class I and II hazardous areas with CSA (for North America) and ATEX certifications for these environments.
Monitor Technologies LLC is a leading pioneer in level measurement and monitoring instrumentation for the worldwide cement producing industry as well as other industries involved with the storage, processing and handling of powders and bulk solids. Celebrating its 50th anniversary in 2008, the experience and market knowledge gained over five decades has earned Monitor a reputation for providing high quality and reliable product solutions. Monitor is located in Elburn Illinois.
SafePoint is just one of the many level measurement and monitoring devices designed and manufactured by Monitor Technologies LLC in Elburn, IL. For additional information please visit www.monitortech.com, www.flexar.info and our weblog at www.typepad.monitortech.com. You can also contact us at 1-800-766-6486 in the USA or 1-630-365-9403.
SiloPatrol® SE Measuring coal powder levels when nothing else will work ….
Coal-fired power plants are commonplace around the
world. In order for these power generating stations to create
huge amounts of electricity the turbines need to be feed with steam
and the steam created by boilers that are fired by … yep,
coal. But coal as it comes from the mining operations is not
what is fed to the burners. First it is ground or pulverized
into powder. It is not unusual for the coal powder to be stored
in silos awaiting the demand for it to be fed to the burners. The
inventory of coal powder in these silos needs to be monitored to
allow for efficient operation of the power plant.
So, how do we monitor the inventory of coal powder in a silo? Not
easily. In one typical application the power plant personnel
found that the only technology that would work reliably is the modern
smart weight & cable system from Monitor Technologies LLC, the
SiloPatrol® SE.
Anhui Tongling power plant in Anhui province in China had tried
almost ever technology possible to get a reliable level measurement
in their 5 coal powder silos. Radar, ultrasonic and others
were tried, but none worked reliably. It wasn’t until
Beijing Conasen walked in and proposed that the Tongling plant use
the SiloPatrol SE smart cable-based inventory monitoring system that
the power plant personnel found a reliable solution.
Mr. William Yuan, sales manager for Beijing Conasen indicates that
the power plant tried many major brands of ultrasonic, radar, and
other technologies but that due to good relations with the Tongling
plant personnel he was able to sell three SiloPatrol SE model SMU
sensors and an HMI operator interface to them. The units were
installed by plant personnel. Because of the heavy amount of
coal dust in the silos an air purge using dry compressed air was
used. The SiloPatrol sensor incorporates the patent-pending
use of Hall-effect sensor technology, a split-compartment enclosure,
microcontroller, redundant optics and many other valuable features
and technology to ensure reliable measurement even in challenging
dust applications like coal powder.
The SiloPatrol SE system has been working reliably and the plant
has since purchased two additional sensors and connected them into
the same HMI operator interface. This same sensor technology
is working reliably at other coal-fired power stations in China as
well.
For more information on the SiloPatrol SE click
here or contact Monitor Technologies LLC at 800-766-6486 in
the USA and 630-365-9403 worldwide.
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