Achieving
Higher Efficiency
This affects decreased acid intake, reduced load on ETP as
much less acidic water goes to ETP, and reduced water consumption.
When rinse aquatic is added to acid by using a top spray,
the acid degree may match up if a managed amount isn't always used for pinnacle
spray. The amount of water delivered to acid has to be less than the makeup
requirement for the level in acid tanks. Makeup is required to stability or
keeps the extent in the acid tank because there is loss due to evaporation,
deliver-over from each coil processed, and lack of water molecules in ferrous
sulfate heptahydrate for the duration of the acid-regeneration manner. These
losses of water are quantified, calculating them. The evaporation loss is
calculated by using knowing acid temperature at 50 deg c and the exposed acid
floor vicinity. The water lost in ferrous sulfate heptahydrate crystals is
understand with the aid of molecular weight balancing such that 2.Three kg of
water is wanted for each kilogram of iron dissolved. After calculating the water
greasepaint requirement, the spray nozzle flow fee may be designed. The spray
nozzle is selected for a particular drift price and ought to be of the clog-loose
layout. Spray nozzles made via BETE are used. The top sprig pipe is positioned
above the tank so that when the coil begins to come back up from the acid tank,
the pump and spray begin, and when the spray does not touch the coil, the spray
stops. The commands for begin, for prevent of spray, and for each acid tank are
given through the primary PLC and through comments from a crane. There is an on-off
car valve inside the spray line for each tank. The coil is held in the top
function above the acid tank for 30 seconds to allow the water to drain off the
coil surface.
The rinse water, when reused for laundry through spray on the
acid tank, isn't sparkling; however acidic rinse water. This reduction in
acidic rinse aquatic reduces the load on ETP. The rinse water pump is linked to
the first rinse after acid to spray returned the acidic water into the acid
tank. Dunk rinse has sludge at the bottom then, so the tapping for suction of
pump is taken from a touch better to keep away from nozzle clogging.
Maintenance of degree in the acid tank is critical for the problem-unfastened operation of the pump. The Hendor pumps want a better degree in the acid tank – 65 % * as the minimal beginning stage. Later, they can run on a degree lower than the minimum starting stage due to the suction pipe connected to them. The level transfer offers alarm if there is a low degree of pump safety. The addition of pinnacle spray water into the acid tank commonly fits the makeup requirement; however, if some adjustment is needed, the acid is pumped into the spent acid tank for a day, after which taken returned at some point of the day after today to fulfill the preliminary minimal pump beginning-stage requirement.
Acid intake with the regeneration manner in the region
usually varies among six and seven kg/ton, but with the acid pinnacle spray
technique, acid consumption can be added all the way down to 4 kg/ton.
This machine can be added to all current pickling plant life
as well as new plants, as it allows to reduce acid consumption and the load on
ETP.
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