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223
The Committee appointed to inspect recently-erected Dust Destructors in London and
the Provinces presented their report on the 7th July, the consideration of which was
deferred to enable them to visit Lewisham to inspect a new form of Destructor, which was
promised to be at work in a few weeks, but they were compelled to wait over seven months,
and it was only on the 27 th February that they were enabled to see the machine in
operation. This long period of waiting was not altogether without advantage, as during
that time the Destructor at Leyton, which at the date of their first report was in course of
erection, was completed, and commenced working during the first week in October. The
Committee were so impressed with what they saw at Leyton on the 10th December, and
from additional information which they obtained from a source independent of the
makers, that on the 16th February they reported to the Vestry a modification of their
report of the 7th July, and unanimously recommended in favour of this form of Destructor.
The report was adopted at your meeting on the 16th March, and I was instructed
to prepare, as soon as possible, the necessary drawings. The Destructor, which
will consist of two cells, will be approached by an inclined road, with a gradient of
1 in 20, to the tipping shed, the refuse being shot into shoots, one to each cell, and
the cells charged alternately so as to ensure an even temperature in the combustion chamber.
The outlets to the flues are at the opposite end to the feed openings, so that the gases pass
through the hotest part of the fire on their way to the chimney. The fire bars will be
stationary and fixed level, and the clinker will be removed by hand through openings in the
side of the cells, the clinkering floor level being 9ft. 6in. below the level of the tipping
floor. Forced draught from a fan will be introduced under the grate, the ash health being
sealed. Immediately behind the combustion chamber will be placed two 64-h.p. water tube
boilers, with a by-pass flue between them, and the dampers will be so arranged that the
gases pass round the tubes of one or birth boilers, or direct to the chimney through the bypass
flue. The boilers will be fitted with auxiliary firing arrangements, and the steam
generated by the waste heat will be utilised for disinfecting purposes ones, and working
engine to supply power for mortar mill and electric lighting. The engine house and
mortar mill shed being placed beneath the tipping she. The chimney shaft will be
octagonal in form with square base, and 150ft. in height above the level of the Spring
Dock, 4ft. inside diameter, with an inside lining of firebrick for a height of 100ft.