Improvements in, or connected with, Wash Towers for Treating Producer Gases.
Year: 1899

page_text: Date of Application, 5th Oct., 1899
Complete Specification Left, 21st June, 1900-Accepted, 18th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in, or connected with, Wash Towers for Treating
Producer Gases.
We, EDWARD JAMES DUFF, Engineer, and THE UNITED ALKALI COMPANY,
LIMITED, both of 30, James Street, Liverpool, in the County of Lancaster, do
hereby declare the nature of this invention to be as follows:-
-
This invention relates to wash towers for cooling and scrubbing gases obtained
from gas producers, the said cooling and scrubbing being effected between the
apparatus for superheating the mixture of air and water-vapour on its way
to the producer, and the acid tower in which the ammonia in the producer
gases is recovered, and the said invention consists in the provision of means
tor distributing the wash-water uniformly throughout the interior of the wash
tower and to enable the cooling and scrubbing to be efficiently performed with
the consumption of a comparatively small quantity of water.
The water is introduced at the top of the tower by means of several dis-
tributors so constructed that the water, introduced through a vertical, or down-
wardly discharging, pipe, is projected onto a slightly concave circular plate at
such speed as to cause the water from the several distributors to be uniformly
spread throughout the tower.
The said pipe is introduced through an opening sufficiently large to allow
the pipe and plate to be withdrawn for cleaning if necessary, and the top of
the inlet pipe is fitted with a blank flange to facilitate periodical cleaning.
The water can be drawn off at the bottom, and raised to the top of the tower
and thus caused to circulate.
Dated this 5th day of October 1899.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improvements in, or connected with, Wash Towers for Treating
Producer Gases.
We, EDWARD JAMES DUFF, Engineer, and TILE UNITED ALKALI COMPANY,
LIMITED, both of 30, James Street, Liverpool, in the County of Lancaster, 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 follow-
ing statement:-
1
This invention relates to wash towers for cooling and scrubbing gases obtained

page_text: from gas producers, the said cooling and scrubbing being effected after the gases
have passed through the apparatus for superheating the mixture of air and
water vapour on its way to the producer and before the gases enter the acid
tower in which the ammonia in the producer gases is recovered, and the said
invention consists in the provision of means for distributing the wash water
uniformly throughout the interior of the wash tower and enabling the cooling
and scrubbing to be efficiently performed with the consumption of a comparatively
small quantity of water.
The accompanying drawings represent in vertical section in Figure 1 and in
plan in Figure 2 a wash tower constructed in accordance with this invention.
Figure 3 shews one of the distributors separately in 'vertical section.
The water is introduced at the top of the tower by means of several distri-
butors A so constructed that the water, introduced through a vertical, or down-
wardly discharging pipe B is projected onto a slightly concave circular plate C
at such speed as to cause the water from the several distributors to be uniformly
spread throughout the tower.
b
Each of the pipes B introduced through an opening 6 sufficiently large to
allow the pipe and plate C to be withdrawn for cleaning if necessary the said
opening being closed by a cover which may be formed on the pipe as shewn,
and the top of each pipe B is fitted with a blank flange I) to facilitate the
periodical cleaning of the said pipes.
Although in the drawings four distributors are shewn one distributor, or
two, or more distributors may be used, provided that the water is thereby
distributed equally throughout the wash tower.
The water can be drawn off at the bottom, and raised to the top of the tower
by any suitable pump or the like and thus be caused to circulate. For this
purpose the bottom of the tower has openings at a by which the water passes
into the vessel E the water being drawn from this vessel through a pipe by a
pump F which pumps up the water through the pipe finto a pipe f³ from
which branches f* open into the pipes B. G is a portion of the superheater,
H is the main gas flue and I is the passage leading to the acid tower. If
desired the relative position of gas connections H and I may be reversed, so
that the gas will enter at the lower level and escape at the higher level.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what
we claim is: -
1. For use in combination with gas producers, a wash tower provided with a
distributor, or distributors, consisting of a discharge pipe and a plate beneath
so arranged that the water is uniformly distributed throughout the wash-tower:
substantially as herein before described
2. For use in combination with gas producers a wash tower provided with
a distributor, or distributors, consisting of a discharge pipe and a plate beneath
so arranged that the water is uniformly distributed throughout the wash-tower
each discharge pipe being passed through an opening in the tower which allows
of the removal of the pipe and plate; substantially as herein before described.
3. For use in combination with gas producers a wash tower provided with a
distributor or distributors consisting of a discharge pipe and a plate beneath
so arranged that the water is uniformly distributed throughout the wash tower,
an opening or openings, in the wash tower which allows, or allow, the pipe and
plate or pipes and plates to be removed and blank flanges at the top of each
pipe which can be removed for cleaning; all substantially as herein before
described.
4. For use in combination with gas producers a wash tower provided with a
distributor or distributors consisting of a discharge pipe and a plate beneath
so arranged that the water is uniformly distributed throughout the wash tower

page_text: an opening in the wash tower which allow each pipe and plate to be removed,
a water receiving vessel at the bottom of the tower, and a pump and connections
with the said vessel and the said distributor, or distributors all substantially
as hereinbefore described.
Dated this 21st day of June 1900
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.