Spray Desulphurization Tower is the main equipment to absorb sulfur
dioxide (SO2), including single tower, twin towers, integrated
tower and so on. This kind of tower has advantages of high
desulphurization efficiency, little resistance, high adaptability
and availability. Spray desulphurization tower is dominated tower
among the gas desulphurization process.
Desulfurization & dedusting specialized non-clogging nozzle.
Mainly made of silicon carbide, PTFE, 316L and ceramic.
Installation and Precautions
1.When installation, equipment should refer to general assembly
drawing from the bottom to the top sequentially. it can also be
installed according to the number of each section since there are
numbers attached on tower when the equipment is delivered.
2.When the base has been placed to the position, top flange washer
should be covered 1-2cm thick furan resin daub from the second
section, and then the uppers can be lift one by one.
3.Installation of equipment inlet: orientation of inlet should be
determined in advance (ensure the consistency between inlet center
of device and the boiler outlet duct center so as to connect with
air duct conveniently)
4. Please follow the above steps to install successively. After
finishing water tank section, please enter into the device with
ladder or scaffold and clear excess cement of cyclone muff, seam
between internal section and section should be filled.
5. Please pay attention to the position of water feeding so as to
connect the position of spray nozzle and pump.
6. After finishing the installation of tower, please make sure the
seal of flange joints.
|1||After ensuring the position of desulfurization spray tower,
infrastructure should be covered normal mortar, the horizontal
position should be found after installing the first section
according to the number of each section.|
|2||Please ensure the consistency between inlet center of the device
and the boiler outlet duct center. The connection should be smooth
to reduce the resistance of the system.|
|3||When hoisting one section, rub the furan resin daub dispatched
together with the equipment and then apply furan powder as well as
furan resin daub at a ratio of 2.5:1. Then stir and pave them
evenly on the annular face of the shell, about 1 to 2 cm thick.
When stirring the daub, we shall control the time.|
|4||After acid-proof mortar is used to connect sections, joint should
be filled with furan resin daub.|
|5||Spray pipe, mist eliminator, back washing pipe should have been
installed. If somewhere need to be welded, please pay attention to
falling sparks to light up mist eliminator.|
|6||After the completion of hoisting the whole equipment, daub shall be
used to fill full the notch of each section connection and build a
slope that is inclined in a downward way so that the rain dew will
not accumulate at the seams of the equipment under outdoor
Points for Attention
1.Please clean up settling tank regularly. Ash deposition will
cause the incomplete precipitation of dust and desulfurization
products. If impurity content of water which flows into clean water
tank is too high, it will block pump and spray device so that
desulfurization effect will be influenced.
2.Feed water flow control: Adjust water flow supply and control the
water supply in allowed range. Do not bring liquid water into
induced fan and chimney.
3.Boiler room operators should seriously record following
information in time: the amount of alkali, PH value of water in
tank, water addition, PH value of ash water and cleaning dust
situation of depositing chamber.
4.Check whether the pump, fan and electric motor are heating,
whether there is abnormal noise and whether there is seepage water
5.Check whether desulfurization products generate crystallizing, if
crystallizing has been generated; please change circulating water
in tank in case of clogging nozzle and affecting desulfurization
6.Circulating water should be changed when blow is out in case that
there is no water but burning.
7.Equipment failure: Firstly, please find the causes of the
malfunction, if the problem can be solved individually, actions
should be taken immediately, if the individual can not solve the
problem, please inform the responsible officer and boiler operators
as soon as possible. When stopping running the equipment for
repair, the fan should be firstly turned off, and then the pump.