Main-vice Desulphurization Wet Scrubber is made of carbon steel and
lined with granite. Several modules are separated and assembled at
site. (Or made as a whole steel-made tower and lined with granite.)
The gas after dedusting enters into the desulphurization tower, and
the SO2 containing in the flue gas is purified due to
neutralization reaction. The vice tower has the function of
dehydration in order to protect the ID fan, flue and chimney that
connected after the vice tower.
Maintenance in Operation
|Maintenance in Operation|
|1||Import pipeline||Import pipeline must be full of liquid; long-term work under
cavitations condition of pump is not allowed.|
Check regularly the current value of electric motor that cannot
exceed the rated current.
|3||long Running||During long running, if the leakage increases, pressure drops
dramatically, or the noise and vibration rise, stop the pump and
check. Chang the wearing parts like mechanical seal, bearing,
Installation and Precautions
- 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.
- 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.
- 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)
- 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.
- Please pay attention to the position of water feeding so as to
connect the position of spray nozzle and pump.
- After finishing the installation of tower, please make sure the
seal of flange joints.
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.