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Density Pressure

The proportion of solid matter in a liquid is determined with the help of density measurement. Typical applications in the process industry are the measurement of acid and lye concentrations, the mixture density of abrasive or sticky liquids and the solid matter content of sludges and slurries.

Featured Solutions

  • MINITRAC-31

    The MINITRAC 31 is a radiation-based sensor for non-contact density measurement of liquids and bulk solids. The MINITRAC 31 determines the density from outside through pipelines or the vessel wall. Through its compact design it is ideal for mounting in positions hard to access and in narrow space applications.

    Your benefit

    • Simple retrofitting during production processes
    • Exact measuring results independent of process conditions
    • High plant availability through non-contact measurement

    Application area

    The point detector determines the density of liquids and bulk solids from the outside without contact. The sensor is used on vessels of any geometry and on pipelines.

    Pipeline in the liquor recovery process

    The black liquor resulting from pulp cooking is regenerated and fed back into the digester. Liquor regeneration comprises several process steps. The processes take place at high temperatures and pressures; the media are aggressive and sometimes abrasive. Density measurement of the liquor in the pipelines is required for eco-friendly and energy-efficient process control.

    Ore thickener

    Extracted minerals are fed to the thickener as a slurry via a trough. The solids are settled out into the bottom of the tank, in a process accelerated through the addition of flocculants. Precise density measurement of the slurry underflow is necessary for effective control of the ore thickener.

    Storage tanks for highly toxic liquids

    For extremely toxic substances such as phosgene, absolute control over the process is a necessity. In industrial applications, these products are only used in hermetically closed circuits. To minimize the inherent risks, independent protection devices form an integral part of the tank equipment. Moreover, it is important to keep the number of tank openings as small as possible. An external level measuring system that includes point level detection is ideal for such situations.

    Primary desalter

    It is important that a desalter unit runs efficiently to prevent corrosion to downstream equipment. When the crude oil mixes with the emulsifying chemicals and water, the resulting emulsion layer makes it difficult for standard level measurement technologies to reliably track the interface. Radiation-based measuring instruments are not affected by this and allow to track the interface even with thick emulsion layers present in the tank to make sure that the desalting process can be controlled efficiently at maximum throughput.

    Learn more about Density Pressure tools available at BBP.

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  • MINITRAC-32

    The MINITRAC 32 is a rugged nuclear detector, well suited for a variety of non-contact density and short level measurements. It is ideal for continous density measurements of liquids or slurries where the pipe translates extreme vibration to the detector. It is equally well suited for installation on high-pressure spool pieces that are repeatedly installed and removed via hamer unions.

    Your benefit

    • Simple retrofitting during production processes
    • High plant availability through non-contact measurement
    Technical specifications:
    Materials, wetted parts
    • No wetted material
    Seal material
    • no media contact
    Housing material
    • Aluminium
    • Stainless steel (precision casting)
    Protection rating
    • IP66/IP67
    Output
    • Profibus PA
    • Foundation Fieldbus
    • 4 … 20 mA/HART – four-wire
    Ambient temperature
    • -40 … 60 °C

    Learn more about Density Pressure Tools like the Minitrac 32 available at BBP.

    DOWNLOAD BROCHURE

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