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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