1, the working principle:
SST series ammonia recovery tower is two reverse flow Packing
absorber, the general operation of the twin towers in series, in
order to improve the recovery of the ammonia concentration.
Ammonia from the intake below the rim of the tower tangentially
into the purification column, under the dynamic action of the fan,
quickly filled the air intake segment space, and then the flow
evenly through the first section up to the level Packing absorption
section. Packing on the surface of the gas phase and the liquid ammonia gas
or sulfuric Reclaimed water chemical reactions, the reaction of
NH3-OH, (NH4) 2SO4, and flows into the lower part of the sump. Not fully absorbed by ammonia gas continue to rise into the
first-stage spray section. Absorbed in the spray liquid from the segment of uniform high-speed
spray nozzle, the formation of numerous small droplets, contact
with mixed gas, chemical reactions continue to occur, and then rise
to the secondary Packing ammonia segment, the first segment shower
level similar absorption process. The second stage of the first stage nozzle of different density,
different pressure liquid jet, absorb acid gas concentration range
different. In the process of spray segment and Packing segment it is in
contact with two heat and mass transfer process. By controlling the flow rate and residence time of the tower to
ensure full and stability of this process. The uppermost tower segment is defogging, the gas absorbing liquid
droplet sandwiched herein is cleared down through the clean treated
air from the upper end of the exhaust purification tower into the
After water, sulfuric acid or NH3-OH absorption, (NH4) 2SO4, can be
used as agricultural fertilizer or boiler desulfurization.
(1) purification rate
SST series purification tower using two reverse spray, Packing
large specific surface area, determined by the experimental study
of the gas-liquid ratio to ensure stable performance of the ammonia
absorption efficiency can reach 85% to 95%.
Low (2) Equipment resistance
Ensuring sufficient gas-liquid contact area basis, SST series
absorber selection of aerodynamic characteristics of the best
varieties Packing and structure, so that the device resistance at
rated air flow does not exceed 40 mm water column, is the lowest
resistance to various Packing absorber a. This is equipped with corrosion-resistant low-pressure ventilation
is extremely beneficial.
(3) small footprint
SST series purification tower to tower, absorption tank,
circulation pump, absorbing liquid pipeline system combined into a
complete set of equipment, compact structure, easy on-site
installation and operation and management.