Improvements in Gas Scrubbers.
Year: 1899

page_text: Date of Application, 2nd Dec., 1899-Accepted, 27th Jan., 1900
Improvements in Gas Scrubbers.
I, GOTTFRIED ZSCHOCKE, of Kaiserslautern (Rheinpfalz), in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-.
ained in and by the following statement:-
The present invention relates to an improved gas scrubber charged with a
oose filling of any suitable description of a regular or irregular form, but pre-
ferably of globular form such for example as wooden spheres, loosely arranged in
the several compartments or chambers of the scrubber.
The shaft of the scrubber is provided with wings or blades which when rotated
cause the filling or scrubbing medium to be constantly agitated and to roll over
each other so as to more effectually remove the ammonia water and the tar from
the lower parts of the scrubber and prevent the clogging of the same by the tar.
The scrubbing surface of the filling material may be increased by perforating the
same in several directions.
The accompanying drawing shows by way of example a gas scrubber.con-
structed according to this invention.
Figure 1 shows a cross-section of the improved apparatus.
Figure 2 is a longitudinal section of the same and
Figure 3 is a ball or sphere constituting one of the filling or scrubbing bodies,
drawn to an enlarged scale.
Like letters of reference indicate corresponding parts in the several figures.
The scrubber consists of a cylindrical casing 6 having a partition walls a which
divide it into a number of compartments or chambers.
These compartments or chambers are connected by openings c and d arranged
alternately in the middle and at their upper portion. Each of these chambers
is furnished with several wings or vanes e covered with perforated plates or sheets
and firmly secured to the shaft f arranged centrally in the scrubber. The loose
filling or scrubbing medium preferably consists of halls or spheres of wood as
shown in Figure 3. They are perforated in several places so as to present to
the gas a larger scrubbing surface while only requiring a limited amount of
space.
In order to prevent the filling material passing from one chamber into the
other through the openings in the partition walls a during the rotation of
the scrubber, it is advantageous to provide cach chamber with a perforated
drum adapted to rotate with the wings or vanes c.
The washing liquid for cleansing the gas enters through a pine into the
first chamber at the right hand side Figure 2 which is thereby filled to a certain
level whereupon the said liquid flows from one chamber into another and is
discharged in the form of a rich ammonia water from the last chamber into a
meter. The gas to be scrubbed enters through the inlet at the opposite end
of the scrubber, flows between and through the filling material in the first
chamber on the left in a radial direction towards the middle, then through the
opening c into the second chamber passing through the same is a radial direction

page_text: towards the periphery, then through the openings d near the periphery of the
casing a and into the third chamber, and so on in like manner until it leaves the
scrubber at m.
The aparatus is so constructed as to afford easy access to the interior in order
to allow of the state of the filling material being ascertained and in case of need
to enable said material to be removed through openings and replaced by clean
material, without the necessity of taking the scrubber to pieces.
The shaft receives its motion from the gearing which may be arranged to
revolve the shaft f in one direction only or if desired to reverse the movement
automatically at predetermined times.
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:-
The improved gas scrubber with loose scrubbing material or bodies, characterized
by the employment of a number of compartments or chambers containing the
said scrubbing material or bodies provided with perforations for increasing the
scrubbing surface, said bodies being of any desired form but preferably of globular
form and adapted to be moved about in the said chambers by the action of wings
or vanese connected to the shaft f of the scrubber, so as to roll one over the
other.
Dated this 2nd law of
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.