Insert for an atomizer wheel and atomizer wheel comprising a number of such inserts

An atomizer wheel for a spray dryer for atomizing slurries of abrasive material, comprising:

• a wheel hub and a substantially cylindrical external wall defining an annular chamber of a substantially bowl-like cross-sectional shape coaxially surrounding said hub,
• a plurality of ejection apertures, each extending in a substantially radial direction, distributed over the circumference of said external wall, and
• a plurality of inserts arranged in said ejection apertures, each insert having a longitudinal axis and comprising an inner end face, an outer end face, an external surface and an internal surface defining a channel having a centre axis and extending between an inlet at the inner end face and an outlet at the outer end face, wherein at least said inlet is offset from the longitudinal axis such that the centre axis of the channel is offset from the longitudinal axis of the insert.

Use of an insert having a longitudinal axis and comprising an inner end face, an outer end face, an external surface and an internal surface defining a channel having a centre axis and extending between an inlet at the inner end face and an outlet at the outer end face, wherein at least said inlet is offset from the longitudinal axis such that the centre axis of the channel is offset from the longitudinal axis of the insert for spray drying absorption for flue gas cleaning.

Use of an atomizer wheel comprising:

• a wheel hub and a substantially cylindrical external wall defining an annular chamber of a substantially bowl-like cross-sectional shape coaxially surrounding said hub,
• a plurality of ejection apertures, each extending in a substantially radial direction, distributed over the circumference of said external wall, and
• a plurality of inserts arranged in said ejection apertures, each insert having a longitudinal axis and comprising an inner end face, an outer end face, an external surface and an internal surface defining a channel having a centre axis and extending between an inlet at the inner end face and an outlet at the outer end face, wherein at least said inlet is offset from the longitudinal axis such that the centre axis of the channel is offset from the longitudinal axis of the insert for spray drying absorption for flue gas cleaning.

An atomizer wheel for a spray dryer for atomizing slurries of abrasive material, comprising:

• a substantially cylindrical external wall defining an annular chamber and a radial direction of the atomizer wheel,
• a plurality of ejection apertures distributed over the circumference of said external wall, each ejection aperture extending substantially in said radial direction, and
• a plurality of inserts arranged in said ejection apertures, each insert having a longitudinal axis and comprising an inner end face, an outer end face, an external surface and an internal surface, said internal surface defining a channel having a centre axis and extending between an inlet at the inner end face and an outlet at the outer end face, wherein at least said inlet is offset from the longitudinal axis such that the centre axis of the channel is offset from the longitudinal axis of the insert.