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Bag filters for ceramic dust extraction

Odsávání živcového prachu

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The GIDLY catalog includes baghouse filter units designed for use in aplications of ceramic dust extraction. Our catalog includes 18 basic baghouse units for ceramic dust graded according to the required volumetric airflow.

Parameters of ceramic dust extraction

By the term ceramic and stony dust, we mean the dust arising in the production lines of stone processing in quarries and products in plants for production of building materials such as tiles, bricks, roofing etc. Ceramic dust is highly abrasive, very fine, dry and does not stick.

Extraction of ceramic dust

Dedusting in quarries

Dedusting in quarries is often a combination of wet sprinkling and dry extraction. By means of dry baghouse systems, the main extracted work places are crushers, screeners, belt conveyors and fill nozzles. The crushers are usually equipped with a suction fitting for the suction duct and thus the required amount of exhausted air is defined by its manufactorer. For sorting machines it is necessary to ensure a sufficiently tight hood with fittings for connection of the exhaust pipe. Individual belt conveyor overhangs must be properly covered and dedusted at the point of the hopper from the belt and impact on the downstream conveyor belt. The usual extraction flow rate for conveyor belt drifts is circa 2500–3500 m3/h. With filling nozzles the required extraction flow rate is usually set by its manufacturer,normally about 1500 m3/h.

Dedusting in production lines of ceramic products

Central dust extraction systems are frequently used both at complete production lines and at single-purpose machines. An example of dust extraction from a single-purpose machine is the dedusting of precision brick grinders. When grinding, it is necessary to have a high extraction flow rate to ensure that the abrasive is extracted from the grinder into the baghouse. Extremely fine dust particles as well as fragments of bricks are normally getting into the ducting. Dust is very abrasive and causes the pipeline to be scraped through in places of change in the direction of air – such as  elbows and branches. Unfortunately, the scraping and stripping cannot be eliminated because of the air speed needed to drift larger fragments away.  The air speed in the ducting pipeline should be at least 22-24 m / s. With this specific technology, it is needed to have a extraction flow rate of at least 24 000 m3/h for one grinder. The required extraction flow rates are usually determined by the manufacturer of the grinding machines.

Recommended ducting solution

We recommend using Group III Ducting for ceramic dust extraction – a thick-walled, welded ducting. Pipeline components such as elbows, flaps, and branches are subject to abrasion from the dust particles and material fragments. Despite the thick walls of these components, it can not be ruled out that after a certain period of time they will be damaged by abrasion.

Baghouse units for ceramic dust extraction in the GIDLY catalog

To find a specific assembly of the baghouse and fan, please go to the catalog and price list page. Select Baghouse units. From the list select „Ceramic dust“. In the next step, select the required volumetric airflow of the bag filter unit. The result will be a set of items – baghouse unit+ explosion dust design parameters + fan +  silencer box, all of which form a dedusting system. You can then insert the items into the costing.

 

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