Minerals
 
 
  Animal Food Products
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Moisture in Limestone (CACO3)  

Quarried limestone is crushed, screened and washed in order to remove impurities prior to the calcination process in the production of quicklime, or to meet the requirements of the customer; the construction industry, cement, iron and steel, glass making, paper, sugar refining or one of the many other industries using limestone as a raw material.

MCT 300 moisture measurements enable the rejection of the finer wet impurities, such as clay, sand and iron-bearing minerals, from the crushed limestone. In addition, the MCT 300 is used to determine the moisture content of the finely crushed limestone exiting the secondary crusher, and dryer - if one is employed. Moisture needs to be monitored to ensure corrective measures can be taken to prevent blockages from occurring within the Screeners, as well as to ensure the levels satisfy the customer’s specification.

Limestone Production
Limestone is quarried or mined rock. The processed material is crushed and transported across sizing screens whereupon it is saturated with water to remove unwanted material before storage and transportation, or further processing.

Measurement Locations

1. Over a conveyor before the final crusher (0-5% moisture) to enable elimination of impurities.
2. Above a conveyor exiting the final crusher or dryer (0-1% moisture).

Gauge Installation
The gauge should be positioned 6-15” from the product. Product flow should be continuous and of sufficient depth that the transporting medium is not seen by the gauge. If flow is discontinuous, a gating option can be used to enable measurement only when product is viewed.

 
 
Measurement Performance
Measurement Location Target % Typical Accuracy%
Limestone (50-100mm) Post First Crusher 0-5% 0.2%
Finer Crushed Limestone Post Final Crusher 0-2% 0.15%
 
 
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  Process Sensors Moisture Transmitters

MCT 460: Used in a wide variety of industrial processes, the MCT 460 Multi-Constituent NIR Transmitter, a True Stand-Alone Transmitter, provides off-line accuracy under on-line operating conditions. Read more about the MCT 460 moisture sensors...

MCT 460-T: The MCT 460-T measures moisture... the most critical variable in tobacco processing... providing the world's most accurate, reliable and stable moisture measurement for the tobacco industry. Read more about the MCT 460-T moisture measurement tool...

MCT 460-WP: The MCT 460-WP uses a well proven algorithm which works on a wide range of wood varieties and forms. You choose the mode of operation, stand-alone or networked. Read more about the MCT 460-WP moisture measurement tool...

MCT 330HD: The MCT 330HD features a heavy duty stainless steel enclosure, is resistant to high temperatures, is sealed for wash down environments, and provides reliable, continuous moisture measurement. Read more about the MCT 330HD moisture measurement tool...

MCT 466-SF: The MCT 466-SF features a food grade optical window, a robust stainless steel enclosure, and reliably operates in high temperature locations, measuring moisture, oil & product temperatures. Read more about the MCT 466-SF moisture measurement tool...

MCT 466 QuikCheck: Used for quality control in a wide variety of industrial processes, the MCT 466 QuikCheck bench top NIR Tester provides fast accurate results every time. Read more about the MCT 466 QuikCheck moisture analyzer...

GUARDIAN: The Guardian Scanning Frame System is comprised of three components: MCT-460 NIR Transmitter, the automated Scanning Frame and a PC with Automated Guardian Profile Software. Read more about the GUARDIAN Scanning Frame System...