Alternate Heating COAL GUN S130, Инструкция по установке и эксплуатации

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Note: Burn Pea Or Buckwheat Size Anthracite
Coal Only!
Ashes should be placed in a metal container with
a tight 1 ing lid. /e closed container of ashes
should be placed on a non-combustible @oor or on
the ground well away from all combustible materials
pending 1nal disposal. If the ashes are disposed of by
burial in soil or otherwise locally dispersed, they
should be retained in a closed container until all
cinders have thoroughly cooled to prevent
inadvertently starting a 1re.
TREATMENT OF BOILER WATER
Proper treatment of make-up water and boiler
water are necessary to prevent scale or other
deposits and corrosion within the boiler. /e absence
of adequate external and internal treatments can lead
to operation upsets or total boiler failure. Where a
choice is available, pretreatment external to the
boiler is always preferred and more reliable than
treatment within the boiler.
Instructions for feed water treatment as prepared
by a competent feed water chemist should be
followed. Do not experiment with homemade
treatment methods or compounds.
Representative samples of feed water and boiler
water need to be analyzed frequently to ensure that
they are in speci1cation. /e following terms and
guidelines are to be used in conjunction with the
advice of a water treatment specialist.
Ph
/e Ph value of your boiler water is a number
between zero and fourteen. Values below seven are
acidic while values above seven are basic.
/e Ph factor is the most important factor
in@uencing scale forming or the corrosive tendencies
of boiler water. It should be adjusted to between a
minimum of 10.5 and a maximum of 11.0 to prevent
acidic corrosion of boiler tubes and plates and to
provide for the precipitation of scale forming salts.
Below a Ph of 5.0 the water is acidic enough to
dissolve the steel boiler plates. Under these
conditions the steel gradually becomes thinner and
thinner until it is destroyed. At a Ph between 5 and
9.4 pi ing of steel plates will occur at a rate
dependent upon the amount of dissolved oxygen in
the boiler.
Dissolved Oxygen
Aeration of city water supply is frequently used
to remove other noxious gasses, however, eIcient
aeration results in saturation of the water with
oxygen. /e majority of corrosion problems are
directly related to the quantity of dissolved oxygen
in the boiler water. Elimination of the corrosive
eDect of dissolved oxygen can be accomplished
either directly or chemically.
Direct or mechanical removal of dissolved
oxygen is done through the use of a de-aerator.
Chemical de-aeration is done through the
introduction of speci1c chemicals in the boiler to
react with the oxygen. /e dissolved oxygen content
should not exceed 0.007 mg/l.
Sulfites
Sodium sul1te is generally used for the chemical
removal of dissolved oxygen within the boiler water.
To assure the rapid and complete removal of the
oxygen entering the boiler feed water system the
concentration of sul1te in the boiler must be
maintained at a minimum of 120 ppm. (parts per
million).
Solids
Solids can be broken up into two categories;
suspended and dissolved. Suspended solids are those
that can be removed by 1ltration while dissolved
solids are in solution with the water.
/e best test for the determination of the solids
content of the boiler water is through a conductance
test. /e conductance value of boiler water varies by
the various ionized salts present. /e conductance
can be used to measure the total dissolved solids in
the boiler water and to serve as an accurate means
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