Improved Atmospheric and Water Condenser and Tar Extractor Combined, for use in the Manufacture of Gas.
Year: 1897

page_text: Date of Application, 2nd Dec., 1897
Complete Specification Left, 3rd Oct., 1898-Accepted, 2nd Dec., 1898
Improved Atmospheric and Water Condenser and Tar Extractor
Combined, for use in the Manufacture of Gas.
JABEZ FIRTH BLAKELEY, Gas Engineer, Queen Street, Ravensthorpe, near
Dewsbury, Yorks, do hereby declare the nature of this invention to be as
follows:-
An improved form of condensers for cooling the gases extracting the tar &
other heavy compounds, obtained from the carbonizing of coal, oil, &c., and from
furnace gases, also for the washing of the said gases.
It may be adopted in different forms but is more particularly adapted to the
annular & oblong form of condensers.
In the case of the annular form, instead of the usual gas chamber being a clear
space I propose having a spiral screw form of plates the full width (or partly the
full width as may be most efficient) of this annular space from top to bottom with
water or liquor passing down the same by which means the gas passes in a
spiral direction & the contact with the underside of the spiral plates assists it in
depositing its heavy compounds, the water or liquor assisting in cooling & also
in carrying off the products of condensation.
In a set of condensers say of 4 columns, two only may be adapted with water
or liquor distributing apparatus, & the spiral plate be perforated to cause a
greater subdivision of the gases & to allow the water or liquor to pass through
and intermingle with the gases in their ascent.
The principle may be varied to suit the different forms of condensers & may be
particularly applied to the oblong form & adopted by a series of baffle plates,
the water or liquor overflowing from the upper tiers to those below (or perforated
plates filling the spaces as with the annular form) in a zig zag direction.
In the bottom chambers of the last condensers may be arranged a water chamber
arranged as a washer or extractor for the gas to pass through, before exit to the
scrubbing plant.
The advantages claimed for these condensers are:-greater efficiency & larger
cooling capacity size for size of apparatus with small ground space required &
thorough extraction of tar, leaving the subsequent apparatus free to do its intended
duty without being impeded by the deposits of tar so very frequently found in
the apparatus after the condensers.
We also claim slow condensing an admitted advantage in securing best results
from gas making & as a consequence much assistance is given to the scrubbing
plant by the extraction of the lighter oil compounds with which the pas is charged.
Whereas in the ordinary form there is no interruption of the gas it being in
one bulk from top to bottom of the annular space, the only points of contact
being the sides of ine condensers & as a consequence much larger plant is required
than will be necessary with this system.
December 1st 1897.

page_text: Improved Atmospheric and Water Condenser and Tar Extractor
Combined, for use in the Manufacture of Gas.
JABEZ FIRTH BLAKELEY, Gas Engineer, Queen Street, Ravensthorpe, near
Dewsbury, Yorks, 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: —
An improved form of condensers for cooling the gases, extracting the tar, &
other heavy compounds, obtained by the carbonizing of coal, oil, &c., or from
furnace gases, also for the washing of the said gases.
.
It may be adopted in different forms but is more particularly adapted to, the
annular, & oblong form of condensers as indicated by drawings Sheet: 1. & 2
herewith.
a
In the case of the annular form, instead of the usual gas chamber A being
clear space, I propose having a spiral screw form of plates B'B the full width
(or partly the full width as may be most effecient) of this annular space from. top
to bottom with water or liquor passing down the same by which means the gas
passes in a spiral direction & the contact with the underside of the spiral plates
assists it in depositing its heavy compounds, the water or liquor assisting in
cooling & also in carrying off the products of condensation.
In a set of condensers say of 4 columns, two only may be adapted' with water
or liquor distributing apparatus, & the spiral plate be perforated to. cause a
greater subdivision of the gases & to allow the water or liquor to pass through. &
intermingle with the gases in their ascent.
may
The principle may be varied to suit the different forms of condensers & be
particularly applied to the oblong, form & adopted by a series of baffle plates, C
the water or liquor overflowing, from the upper tiers to those below (or per-
forated plates filling or partly filling the spaces as with the annular form) in a
zig zag direction.
In the bottom chambers of the last condensers may be arranged a water chamber
arranged as a washer or extractor for the gas to pass through, before exit to the
scrubbing plant.,
The advantages claimed. for these condensers are:-greater effeciency & larger
cooling capacity size for size of apparatus with small ground space required and
thorough extraction of tar, leaving the subsequent apparatus free to do its intended
duty without being impeded by the deposits of tar so very frequently found in
the apparatus after the condensers.
We also claim slow condensing an admitted advantage in securing best results
from gas making and as a consequence much assistance is given to the scrubbing
plant by the extraction of the oil compounds with which the gas is charged.
Whereas in the ordinary form there is no interruption of the gas, it being in
one bulk. from top to bottom of the annular space, the only points of contact
being the sides of the condensers & as a consequence much larger plant is required
than will be necessary with this system.
Having now particularly described and ascertained the nature of my said inven-
tion, & in what manner the same is to be performed, I declare that what I
claim is :-
1st. In the condensing of hot gases, I claim the use of perforated baffle plates
fixed in. form. slewn at any required angle by means of which the gases having
greater attachment to these plates (in addition to the inside shell of the condenser),

page_text: the more readily deposit their heavy compounds than in the ordinary form of
condensers with no intermittent plates.
The gases being diverted from side to side are broken up in passing up &
down the condenser columns, through the perforations of the said baftie plates
thus causing a larger deposit of tar & other heavy compounds of the gas, & hence
greater condensation, size for size of the apparatus, as in manner, & for the
purposes substantially shewn & described.
2nd. These spiral perforated plates fixed in the ordinary annular condensers I
claim to be an improvement, the crude gases passing under, above & through the
said perforated spiral plates causes the readier deposit of the heavy compounds
of the gas, than is the case where no intermittent plates are fixed, & thus one
large undisturbed volume of gas being contained from top to bottom as is the case
with the ordinary annular form of condenser in which the sides of the condenser
shell is the only attachment to the gas.
3rd. By a supply of water or other liquid being passed over & through the said
perforated plates, it assists to carry off the products of condensation & the extrac-
tion of the heavier compounds of the gas & gives greater condensing power
than where the atmospheric air is the only condensing medium as with the
ordinary annular condensers.
4th. In the condensing of gases I claim an improvement on the previous known
forms of annular pipe & vertical plate condensers by the additions of intermittent
plates or in manner & for the purposes substantially as shewn & described.
5th. That variations may be made in the sizes, forms & numbers of the spiral
or baffle plates in each condenser column according to nature of gas to be
treated & as found to be most efficient.
11000