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  3. Cement mass flow measurement

Cement mass flow measurement

Weighing systems are not always the best solution for controlling and dosing. There are not so many solutions for measuring solid materials in contrast to wide variety of devices measuring liquids. Interesting mass flowmeter for bulk materials is MF 3000 microwave transmitter.

The EU directive 2003/53/EC describes manufacturing of reduced chromatic concrete. In order to achieve government regulated limits iron-sulfate must be induced into cement production.

Iron-sulfate is suitable for neutralizing of chrome-VI. Mixing iron-sulfate to the cement production process limits chrome-VI to 2ppm or less thus drastically reducing the risk of skin-related illnesses in case somebody comes in contact with fresh concrete. In any case, contact with fresh concrete due to its alkaline content should be avoided since the natural skin protection against acids is jeopardized.

Adding iron-sulfate is done when the stocked cement is transported from the silo to the bag packaging area. It is essential to dose iron-sulfate to 0.5% in order at achieve the best possible result. Therefore, the material flow of the cement must be monitored continuously in real-time. From this data the correct mixing of iron-sulfate is calculated.

Solution

The Lafarge Perlmoser GmbH, cement factory in Mannersdorf, Austria has decided in favor of the Mütec MF3000 mass flow meter as the best possible solution to measure the flow of cement. It can easily be retrofitted to existing metallic pipes by welding a flange to the pipe and drilling a single 18mm hole through it. The whole installation only takes a few minutes and does not require any intensive changes into the existing process.

Benefits

  • Accurate on-line cement mass flow measurement
  • Optimized mixing of iron-sulfate to achieve regulated limits
  • Less iron-sulfate is required for the process
  • Easy and fast installation of mass flow meter into existing process

Rafał Nowicki

Rafał Nowicki

Marketing

+48 607 701 119

E-mail
  • Mütec Instruments

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MERCON GmbH

Im Technologiepark 1
15236 Frankfurt (Oder)

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