Further nozzles for flue gas desulfurization

Lechler full cone, hollow cone and flat jet nozzles meet the requirements that modern technology in exhaust air cleaning demands on nozzles: high-alloy and chemically resistant materials as well as liquid distribution and circular distribution tailored to the application and the appropriate droplet spectrum. The constructional designs are classified according to

Nozzle series

Tangential-Vollkegeldüse SZT

Tangential full cone nozzle SZT

Uniform liquid distribution over a circular surface.

  • Resistant to clogging
  • Self-emptying
  • Gentle on the wall
  • Low drain water
  • Guiding effect on gas flow

Application: Absorber preferably in the edge area

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Exzenter-Hohlkegeldüse E

Eccentric hollow cone nozzle E

Uniform annular distribution of finer droplets than comparable full-cone nozzles and larger free cross-sections.

  • Resistant to clogging
  • Self-emptying

Application: Absorber preferably in the middle area

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Axial-Vollkegeldüse SZ

Axial full cone nozzle SZ

Uniform liquid distribution over a circular surface.

  • Axial inflow
  • Self-emptying

Application: Absorber

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Helix-Vollkegeldüse

Helix full cone nozzle

Spiral fluid distribution.

  • Less sensitive to clogging than axial full-cone nozzle.
  • Self-emptying

Application: Absorber, emergency injection

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Zungendüse Z

Tongue nozzle Z

Flat jet nozzle.

  • Resistant to clogging, maximum free cross-sections
  • Self-emptying

Application: Emptying, cleaning flue gas inlet duct

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Doppel-Exzenter-Hohlkegeldüse DE

Double excentric hollow cone nozzle DE

Bi-directional double hollow-cone nozzle.

  • Resistant to clogging,
  • Self-emptying

Application: Absorber, increasing the active spraying height, pressure loss reducing

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)
Vollstrahldüse VD

Full jet nozzle VD

Closed full jet.

  • Nozzle insensitive to clogging
  • Self-emptying

Application: emptying, impulse nozzles

Information about nozzles for flue gas desulfurization (pdf, 6.16 MB)

Information on construction-related differences in design

Due to their different efficiency-related design methods, nozzles for flue gas desulphurization are differentiated according to the following criteria:

Spray pattern
The most frequently used nozzles in environmental technology are hollow-cone and full-cone nozzles. Hollow-cone nozzles produce a circular load; full-cone nozzles, on the other hand, distribute liquid over a circular area. Helix nozzles occupy a special position.

Feed
Hollow-cone and full-cone nozzles with tangential inlet flow do not have any internals. The hydrodynamic design results in a self-cleaning effect and thus trouble-free operation of the nozzles. However, axial full-cone nozzles of the various series also have the largest possible passage cross-sections due to a specific swirling design.

Connecting type
An important factor in nozzle assembly is the time required for installation and removal, i.e. the downtime of the system. Lechler therefore offers different mounting variants tailored to customers’ requirements, which help to save time and money. Lechler offers various fastening solutions according to the supply lines of customers system.

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TwinAbsorb® nozzle

Double full or double hollow cone nozzles for wet flue gas desulphurization. Efficient flue gas cleaning and reliable SO2 separation thanks to innovative technology. TwinAbsorb®

Twin4Absorb nozzle

Further development of the TwinAbsorb®. Four overlapping spray nozzles generate additional jet collisions and thus, a more active reaction surface. Twin4Absorb