Drying
Process of Fly Ash
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wet base fly ash to break up the feeding system: power plant wet
row of fly ash for flotation, flotation of fly ash after the
beginning of about *8% of the water. In the yard after the
initial sun drying water below *8%. The main function of the
scuffing feeding system is to divide the wet coal ash into a
group by means of a dispersing machine so that the group diameter
of the wet base ash is ≤ *0mm and fed into the dryer by the belt
conveyor. The system is mainly composed of hopper, disperser,
flat belt conveyor and so on. Break the effect of good or bad,
directly determines the drying system capacity. Which is close to
the dryer inlet device using heat-resistant and good sealing
equipment.
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heating system: the general use of Boiling Furnace, coal on coal,
blowers and other equipment to ensure the provision of stable
high temperature hot flue gas.
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Drying machine: Seal feed hood, screw propeller, three-cylinder
dryer, dust-proof exhaust discharge tail cover, etc., to complete
high-moisture materials and high heat flue gas heat
exchange.
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Dust removal system: the use of gas box pulse bag filter, the
system induced draft fan, etc., dust collector to collect the
fine particles during the drying process, while the drying system
to achieve exhaust emissions.
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Distribution monitoring and control system: the selection of
complete sets of power distribution devices, monitoring and
control production platform, industrial TV monitoring system,
local operation box, communications, industrial computer and
other electrical equipment to achieve centralized control of the
drying system or local control.
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finished product delivery system: dried finished products
directly to the subordinate to the classification or
grinding.
Technical
characteristics of fly ash drying system
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good drying effect, large processing capacity. The use of hot
flue gas and wet powder coal Jie direct contact, downstream
process drying, heat exchange fully, drying effect, production
capacity, can achieve a single system dry Kelan carbon production
*0t / h.
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double break the system effect is good, to ensure that after the
dispersion of the wet fly ash group is less than *0mm, so as to
ensure the effect of fly ash drying.
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high degree of automation, easy to operate. System integration is
high, and equipped with automatic intelligent monitoring system,
the hot air furnace furnace, dryer inlet, outlet and fan inlet
and other major parts of the temperature, pressure and other
parameters of real-time monitoring. System operation to achieve
automatic control and regulation, continuous parameter automatic
acquisition, fault alarm and security interlock
protection.
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vibration feeder, dryer, induced draft fan, blower and other
equipment using frequency control. According to the production
and operating parameters need to use the appropriate speed, not
only can facilitate the regulation needs, but also save a lot of
energy consumption.
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discharge is good. Tail gas using gas box pulse bag filter, not
only to achieve the collection of dry fly ash, and discharge
standards.
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Good working environment. Drying system operation are all closed
negative pressure professional operation, no dust running.
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