FGD Limestone Slurry Density Monitoring

Plan real-time non-nuclear density measurement for limestone preparation, transfer and recirculation in flue gas desulfurisation systems.

Discuss your application

Relate limestone density to the scrubber process duty

FGD systems use limestone slurry to remove sulphur compounds from flue gas. A measurement review should define the preparation or recirculation stream, solids range, abrasion and scaling conditions, and the operational decision supported by density.

PMA engineer checking a wall-mounted Rhosonics SDM ECO at a mineral processing facility

Representative industrial slurry application image; the final configuration requires a site-specific process review.

Define the FGD slurry application

The process survey should include preparation, recirculation and cleaning states.

Process point

Choose preparation discharge, transfer or recirculation according to the intended response.

Slurry range

Document limestone source, particle size, solids, density, temperature and chemistry.

Installation conditions

Review scale, abrasion, pipe fill, velocity, pressure, bends and maintenance access.

Validation plan

Compare online density with representative samples across normal and cleaning states.

A practical measurement review pathway

Move from a broad application to a defined, testable duty before the signal is used for process decisions.

Map the slurry route

Identify water, powder addition, tanks, pumps and scrubber connections.

Define the decision

State whether density supports make-up, dilution, inventory or transfer.

Survey the line

Confirm fitting, full pipe and service conditions.

Commission with evidence

Validate trends and document invalid or excluded states.

Where the measurement can add value

Continuous measurement is useful only when the process boundary, validation method and operating response are explicit.

Potential value

Continuous density can give operators earlier visibility of slurry preparation or recirculation changes than periodic sampling alone.

Important limits

Density does not replace pH, sulphur-removal performance, gypsum quality, emissions monitoring or independent plant protection.

Sources and application boundary

These sources define the general measurement context. Final suitability depends on the actual composition, operating range, pipe or vessel conditions, materials, installation point and validation evidence.

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Use the Application Finder to compare this duty with mining, cement, water, chemical, quarry, dredging and food or beverage guidance.

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