Particles Suspended in Air or other Gases.
Year: 1885

page_text: Particles Suspended in Air or other Gases.
I, HENRY SIMON, of N° 20, Mount Street, Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
According to my present invention, I effect the separation of dust or solid
particles suspended in air or other gases by causing the air to pass slowly, by
preference in an upward direction, through a chamber or casing in which are
arranged a series of superposed rows of bars or grids of channels, with spaces
between the bars or channels, the bars or channels of the one row or grid being
situated more or less over the spaces of the contiguous lower row or grid, so that
as the air rises between the bars of each successive row or grid a portion of the
dust or solid suspended matter will be deposited therefrom on to the bars, the
heavier particles being deposited on the lower rows of bars or grids of channels
and the lighter particles on the upper ones.
The said bars or channels may either be horizontal or inclined and stationary, or
they may be inclined and have a longitudinal to and fro motion imparted to them,
so as to facilitate the descent of the accumulated dust along them to the lower end,
where it is collected by any convenient means; or the inclination of the bars or
channels may be such that the dust will descend along them by gravity. Or the
trough shaped channels may be provided with overhanging lips, or funnel mouths
or they may be made as tubes with slots along the tops, and the air may be
exhausted from the ends thereof by a fan or other suitable means, so as to induce
an indraught into them whereby the dust or suspended particles are drawn
through the slots or funnel mouths and carried along the channels, the draught
being regulated if necessary by suitable valves or slides at the ends of the
channels, or by more or less closing or obstructing the slots or funnel mouths.
In some cases there may be grids of solid bars arranged alternately with grids of
channels, the object of the solid bars being to accelerate the currents of air as
they pass between them to the grids of channels above. The arrangement above
described may be further modified by exhausting the air from a space above the
topmost grid of bars or channels, as well as from the ends of the lower channels.
By this means currents of air will be induced through the spaces of the top grid
077

page_text: whereby the air will be caused most effectively to pass over the whole width of
the lower troughs or channels, and thus the deposit of dust from the air into the
channels will be facilitated.
The undersides of the upper bars may be suitably shaped so as to guide the air
currents in the most advantageous manner from the spaces between the lower
channels to those between the upper ones.
The upper bars may either be entirely solid or they may be partly of a trough
shape so as to serve also to collect dust.
The removal of the dust may also be effected from time to time by means of
travelling brushes attached to endless bands passing along the channels of the
upper and lower grids so that by imparting motion to the said band by any
suitable means the brushes in the lower channels will be made to travel in one
direction while those in the channel travel in the contrary direction.
In the arrangement which I prefer to employ the grids are constructed with the
channels in a position sloping downwards at a considerable angle from the centre
of the chamber or casing to either side thereof, or inclined from one side of the
chamber to the other, where the ends of the channels communicate with a longi-
tudinal trough or troughs into which the dust from the channels falls by gravity.

page_text: Particles Suspended in Air or other Gases.
I, HENRY SIMON, of N° 20 Mount Street, Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
According to my present invention, I effect the separation of dust or solid
particles suspended in air or other gases by causing the air to pass slowly, by
preference in an upward direction, through a chamber or casing in which are
arranged a series of superposed rows of bars or grids of channels, with spaces
between the bars or channels, the bars or channels of the one row or grid being
situated more or less over the spaces of the contiguous lower row or grid, so that
as the air rises between the bars of each successive row or grid a portion of the
dust or solid suspended matter will be deposited therefrom on to the bars, the
heavier particles. being deposited on the lower rows of bars or grids of channels
and its lighter particles on the upper ones. The said bars or channels may either
be horizontal or inclined and stationary, or they may be inclined and have a longi-
tudinal to and fro motion imparted to them, so as to facilitate the descent of the
accumulated dust along them to the lower end, where it is collected by any
convenient means; or the inclination of the bars or channels may be such that the
dust will descend along them by gravity. Or the trough shaped channels may be
provided with overhanging lips, or funnel, mouths or they may be made as tubes
with slots along the tops, and the air may be exhausted from the ends thereof by a
fan or other suitable means, so as to induce an indraught into them whereby the
dust or suspended particles are drawn through the slots or funnel mouths and
carried along the channels, the draught being regulated if necessary by suitable
valves or slides at the ends of the channels, or by more or less closing or obstructing
the slots or funnel mouths. In some cases there may be grids of solid bars
arranged alternately with grids of channels, the object of the solid bars being to
accelerate the currents of air as they pass between them to the grids of channels
above.
The arrangement above described may be further modified by exhausting the
air from a space above the topmost grid of bars or channels, as well as from the
ends of the lower channels. By this means currents of air will be induced through
the spaces of the top grid whereby the air will be caused most effectively to pass
over the whole width of the lower troughs or channels, and thus the deposit of
dust from the air into the channels will be facilitated.
The undersides of the upper bars may be suitably shaped so as to guide the air
currents in the most advantageous manner from the spaces between the lower
channels to those between the upper ones.
The upper bars may either be entirely solid or they may be partly of a trough
shana ang to serve also to collect dust

page_text: travelling brushes attached to endless bands passing along the channels of the
upper and lower grids so that by imparting motion to the said bands by any
suitable means the brushes in the lower channels will be made to travel in one
direction while those in the upper channel travel in the contrary direction.
In the arrangement which I prefer to employ the grids are constructed with the
channels in a position sloping downwards at a considerable angle from the centre
of the chamber or casing to either side thereof, or inclined from one side of the
chamber to the other where the ends of the channels communicate with a
longitudinal trough or troughs into which the dust from the channels falls by
gravity.
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DESCRIPTION OF THE DRAWINGS.
On the accompanying drawings are shewn by way of example various arrange-
ments of troughs or channels for carrying out my above described invention.
Figs. 1 and 2 shew sectional side and end views of an arrangement in which
the shaped troughs or channels A A are made to slope down at a considerable
angle from the middle of the chamber B to either side thereof, so that the dust
deposited therein from the air passing up through the chamber in the direction of
the arrows, will of itself fall down them into the side channels C, provided with
conveyors D. The troughs A are arranged in horizontal rows in such manner that
the troughs of each succesive row are situated over the spaces between the row
beneath, so that the current of air passing up between the troughs will be deflected
by the troughs above so as to pass over the lower troughs and thus facilitate the
deposit of dust therefrom.
Figs. 3 and 4 shew an arrangement in which the rows of troughs AA are
arranged so that the troughs of one row are immediately over those below, and
there are provided bars E just above the spaces between the troughs, which serve
to deflect the air currents as described.
Figs. 5 and 6 shew an arrangement in which the troughs A, of rectangular
section, are placed horizontally, and contain scrapers or brushes F carried by endless
bands F¹ passing over rollers G to which rotary motion is imparted so as to cause
the scrapers to travel along the troughs and convey the accumulated dust into the
channels C. E E are as in the previous case bars arranged over the spaces between
the troughs for deflecting the air.
In the arrangement shewn at Figs. 7 and 8, the troughs A are formed with a
slight inclination from the centre to either side and are mounted in a frame H
suspended from rods I to which a lateral to and fro motion is imparted by
means of an eccentric or crank J on a revolving shaft K, so that by this motion
the dust deposited in the troughs is caused to travel down the same into the
channels C.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
-
1. The use for separating dust or solid particles suspended in air or other gases,
of a chamber, in which the air to be treated is caused to flow in an upward
direction, and in which are arranged superposed rows of troughs or channels with
spaces between them for the upward passage of the air, such troughs being made
with such an inclination to either side from the middle of the chamber that the
dust deposited therein from the air will slide down them and fall into lateral
receiving channels, substantially as herein described.
2. In apparatus such as is referred to in the preceding claim, arranging the
troughs or channels in horizontal positions and providing therein scrapers or
brushes carried by travelling bands whereby they are made to convey the deposited
dust into the side channels, substantially as herein described.

page_text: 3. In apparatus such as is referred to in the first claim, imparting to the troughs
or channels a vibrating motion in .the direction of their length, whereby the dust
is caused to descend down their more or less inclined surfaces into the side channels,
substantially as herein described.
4. In combination with apparatus such as is referred to in the preceding claims,
the application of an exhaust at the delivery ends of the channels or troughs
whereby the air current is induced to pass over and into the channels, substantially
as herein described.
5. In apparatus such as is referred to in the preceding claims, arranging the
troughs or channels of the successive rows so that they are situated over the spaces
of the row below, or providing rows of bars so situated that the currents of air
are deflected thereby and the deposit of dust therefrom is facilitated, substantially
as herein described.
ABEL & IMRAY,
Agents for the Applicant.