ALBRECHT Pulsoren von ALBRECHT Ingenieurbüro : Austragshilfen für Schüttgüter und Filterstäube in Silos und Staubbunkern

Fields of Application

ALBRECHT Pulsors have successfully been employed in various plants of well-known companies for many years:

in the building materials industries (lime, gypsum, cement products)
in the chemical industries (polymers, pigments, basis chemicals)
in power stations and incineration plants (filter dust, fly ash)

The proper arrangement of the Pulsors on a silo or bunker will be of vital importance.

Please send us your enquiry together with a sketch of the silo and benefit from our experience.
If necessary we will carry out a Jenike shear test of your product, in order to estimate the maximum diameter of arching, or to calculate the minimum outlet diameter and hopper angle to avoid arching.

Example 1: Arrangement of Pulsors on a big storage silo	The application of Pulsors at silos will be necessary if blockages above the outlet (arching) have to be eliminated or if the bulk solid only flows within a central funnel and sticks to the walls at the periphery (ratholing). Most often it is not sufficient to locate just a single unit at the hopper outlet. Usually further Pulsors are needed at the upper part of the cone. This is particularly true for products which tend to consolidate during storage time (time-consolidation ). Quantity, type and arrangement of the Pulsors at a silo, as well as the optimum cycle of control depend on the shape of the hopper and the flow properties of the material. In order to achieve mass flow or nearly mass flow, it is important to especially activate the material near he walls to flow out. Due to the radial air flow pattern along the hopper walls, undercutting the material, the friction between the wall and the material is reduced considerably and the bulk material is set in motion even on walls with slight inclination.

Example 2: Arrangement of Pulsors at filter dust bunker	The application of Pulsors at filter dust bunkers in waste incineration plants and coal-fired power stations will be necessary if the walls shall regulary be cleared of dust deposits. In the course of time such deposits grow on and either cause shorts in elctrostatic filters or slide down and cause blockages of the outlet. Critical regions for dust deposits always are edges and corners, as well as those regions where the gas flow is redirected by vertical guide plates.